Question

Someone help me with problem 2 I do not understand. Help please and thank you

Answer 1

The height of trapezoid is: B) 5.2 cm

Step-by-step explanation:

Given formula of area of a trapezoid

$A = \frac{1}{2}(b_1+b_2)h$

Given

A = 57.2 cm^2

b1 = 10 cm

b2 = 12 cm

h = ?

Putting values in the formula

$57.2 = \frac{1}{2}(10+12)h\\57.2 = \frac{1}{2}(22)h\\57.2 = 11h$

dividing both sides by 11

$\frac{57.2}{11} = \frac{11h}{11}\\h = 5.2\ cm$

Hence,

The height of trapezoid is: B) 5.2 cm

Keywords: Area, height

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