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Area formula of right angle trapezoid
S trapezoid = (upper bottom + lower bottom) × height △ 2
You can also decompose the right angled trapezoid into a rectangle and a triangle by making auxiliary lines. When calculating the area, add up the area of the rectangle and triangle!
What is the area formula of trapezoid?
The area formula of trapezoid is
S ladder = (upper bottom + lower bottom) × height △ 2
The area formula of trapezoid
(upper bottom + lower bottom) * height / 2
Volume formula of right angle trapezoid
Upper sole: 3 lower sole: 7 height: 5 thickness: 2
Find the volume
Unit: cm
Trapezoidal volume = (upper bottom + lower bottom) × height △ 2 × thickness
（3+7）×5÷2
=10×5÷2
=25 (square centimeter)
25 × 2 = 50 (CC)
A: its volume is 50 cubic centimeters
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