Exercise 9 Page 341

To find the area, calculate half of the product of the base and the height.

20yd^2

Let's find the area of the given triangle. The area of a triangle is half the product of its base and its height.

In the given triangle, we can see that the base is 5 yards and that the height is 8 yards. We can substitute these two values into the formula for the area of a triangle and simplify. Let's do it!

A=1/2bh

SubstituteII

b= 5, h= 8

A=1/2( 5)( 8)

▼

Evaluate right-hand side

Multiply

A=1/2(40)

MoveRightFacToNumOne

1/b* a = a/b

A=40/2

CalcQuot

Calculate quotient

A=20

The area of the triangle is 20 square yards.

Hints

Check the answer