How to find the area of a triangle in pre-algebra - Math
Card 0 of 56
Find the area of a triangle with a base of 3 inches and a height of 14 inches.
Find the area of a triangle with a base of 3 inches and a height of 14 inches.
Apply the formula for the area of a triangle: 
A = 3 * 14 * (1/2) = 21
Make sure that your units are squared.
Apply the formula for the area of a triangle:
A = 3 * 14 * (1/2) = 21
Make sure that your units are squared.
Compare your answer with the correct one above
Find the area of a triangle with a base of 16 meters and a height of 4 meters.
Find the area of a triangle with a base of 16 meters and a height of 4 meters.
Area of a triangle = 
= (1/2) * 16 * 4
= 32
Area of a triangle =
= (1/2) * 16 * 4
= 32
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The equation for the area of a triangle is

We plug the base of
and the height of
into the equation to get

We then multiply to get the answer of
.
The equation for the area of a triangle is
We plug the base of and the height of
into the equation to get
We then multiply to get the answer of .
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The equation for the area of a triangle is

We plug the base of
and the height of
into the equation to get

We then multiply to get the answer of
.
The equation for the area of a triangle is
We plug the base of and the height of
into the equation to get
We then multiply to get the answer of .
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The formula for the area of a triangle is half of the base times the height: 
Plug in our given information and solve:



The formula for the area of a triangle is half of the base times the height:
Plug in our given information and solve:
Compare your answer with the correct one above
If a triangle has an area of
and a base of
, what is the height?
If a triangle has an area of and a base of
, what is the height?
The formula for the area of a triangle is half of the base times the height: 
Plug in our given information and solve:


Multiply both sides by
to get rid of the
:

Divide both sides by
:


The formula for the area of a triangle is half of the base times the height:
Plug in our given information and solve:
Multiply both sides by to get rid of the
:
Divide both sides by :
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The equation for the area of a triangle is
.
We plug the base of
and the height of
into the equation to get
.
We then multiply to get the answer of
.
The equation for the area of a triangle is .
We plug the base of and the height of
into the equation to get
.
We then multiply to get the answer of .
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The formula for the area of a triangle is
.
Plug in our given values.




The formula for the area of a triangle is .
Plug in our given values.
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The formula for the area of a triangle is
.
Plug in our given values.




The formula for the area of a triangle is .
Plug in our given values.
Compare your answer with the correct one above
What is the base of a triangle if the height is
and the area is
?
What is the base of a triangle if the height is and the area is
?
The formula for the area of a triangle is
.
Plug in our given values.

Combine like terms.


Divide both sides by
to isolate
.


The formula for the area of a triangle is .
Plug in our given values.
Combine like terms.
Divide both sides by to isolate
.
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The formula for the area of a triangle is
.
Plug in our given values and solve.




The formula for the area of a triangle is .
Plug in our given values and solve.
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The equation for the area of a triangle is

We plug the base of
and the height of
into the equation to get

We then multiply to get the answer of
.
The equation for the area of a triangle is
We plug the base of and the height of
into the equation to get
We then multiply to get the answer of .
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
To find the area of a triangle, use the equation:

Substitute the given values for base and height into the equation:


To find the area of a triangle, use the equation:
Substitute the given values for base and height into the equation:
Compare your answer with the correct one above
Find the area of a triangle with a base of 3 inches and a height of 14 inches.
Find the area of a triangle with a base of 3 inches and a height of 14 inches.
Apply the formula for the area of a triangle: 
A = 3 * 14 * (1/2) = 21
Make sure that your units are squared.
Apply the formula for the area of a triangle:
A = 3 * 14 * (1/2) = 21
Make sure that your units are squared.
Compare your answer with the correct one above
Find the area of a triangle with a base of 16 meters and a height of 4 meters.
Find the area of a triangle with a base of 16 meters and a height of 4 meters.
Area of a triangle = 
= (1/2) * 16 * 4
= 32
Area of a triangle =
= (1/2) * 16 * 4
= 32
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The equation for the area of a triangle is

We plug the base of
and the height of
into the equation to get

We then multiply to get the answer of
.
The equation for the area of a triangle is
We plug the base of and the height of
into the equation to get
We then multiply to get the answer of .
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The equation for the area of a triangle is

We plug the base of
and the height of
into the equation to get

We then multiply to get the answer of
.
The equation for the area of a triangle is
We plug the base of and the height of
into the equation to get
We then multiply to get the answer of .
Compare your answer with the correct one above
What is the area of a triangle with a base of
and a height of
?
What is the area of a triangle with a base of and a height of
?
The formula for the area of a triangle is half of the base times the height: 
Plug in our given information and solve:



The formula for the area of a triangle is half of the base times the height:
Plug in our given information and solve:
Compare your answer with the correct one above