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Big Ideas Math Geometry, 2014

BI

Big Ideas Math Geometry, 2014 View details

Maintaining Mathematical Proficiency

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Exercise 11 Page 1

Use the formula for area of a triangle.

84yd^2

We will use the formula for calculating the area of a triangle. A=1/2bh Now we substitute the value of the base, b=24yd, and the value of the height, h=7yd, into the formula to calculate A.

A=1/2bh

b= 24, h= 7

A=1/2( 24)( 7)

MoveRightFacToNumOne

1/b* a = a/b

A=24/2* 7

Calculate quotient

A=12* 7

Multiply

A=84

The area of the triangle is 84yd^2.

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Exercises p.1