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Area formula of isosceles trapezoid Wait for the trapezoidal Top 45 bottom 50 bottom angle 70 height!
h=5/cos70
What is the area formula of isosceles trapezoid?
(bottom + top) times the height and divide by 2
Circumference formula of isosceles trapezoid
Know perimeter, know area, know waist length, how to seek height? Urgent need, thank you
Isosceles trapezoid circumference = (upper bottom + lower bottom) + waist * 2
Area of isosceles trapezoid = (upper bottom + lower bottom) * height / 2
If you know the circumference and waist, you can get the number of (upper bottom + lower bottom) from the first one
Then according to the area, we can use the second area formula to get the height
A formula for calculating the height of isosceles trapezoid with upper and lower base and perimeter
The top of an isosceles trapezoid is 3cm, and the bottom is 6cm. Its circumference is 19cm. How many cm is the isosceles trapezoid?
（19－3－6）÷2
＝10÷2
= 5 (CM)
Waist length = (circumference - sum of two bottoms) △ 2
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