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Big Ideas Math: Modeling Real Life, Grade 6 View details

Chapter Review

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Exercise 11 Page 334

The area of a triangle is half the product of its base and its height.

2.5cm or 52cm

Practice makes perfect

We want to find the length of the height h of the given triangle. From the figure, we know that the base of the triangle is 4 centimeters long and that the area is 5 square centimeters. Let's see the diagram that illustrates the situation.

The area of a triangle is found by taking half of the product of its base and its height. A=1/2bh We can substitute A= 5 and b= 4 into this formula and solve for h, the height of the triangle. Let's do it!

A=1/2bh

SubstituteII

A= 5, b= 4

5=1/2( 4)h

▼

Solve for h

MoveLeftFacToNum

a*b/c= a* b/c

5=4h/2

CalcQuot

Calculate quotient

5=2h