Question

What is the area of the trapezoid? [A =
1
2
(b1 + b2)h]

A. 1249.5 sq cm
B. 162.75 sq cm
C. 105 sq cm
D. 38.75 sq cm

Answer 1

To solve the area of a trapezoid, the formula is: A=(a+b)/2xh. a= is the top which is 18cm. b= is the bottom which is 24cm. Therefore, 18+24 equals 42. Following the formula, we now need to divide 42 by 2, which gives us 21. Now we need to multiply 21 by the height, which is 5cm. 21 multiplied by 5 equals 105. Your answer is C. 105 sq cm

Answer 2

Answer:

C. 105 sq cm

Step-by-step explanation:

The formula of an area of a trapezoid:

$A=\dfrac{b_1+b_2}{2}\cdot h$

b₁, b₂ - base

h - height

We have b₁ = 24cm, b₂ = 18cm, h = 5cm. Substitute:

$A=\dfrac{24+18}{2}\cdot5=\dfrac{42}{2}\cdot5=21\cdot5=105\ cm^2$