What is the Area of a Trapezoid 11 cm 12cm 8cm

2
ok
http://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Trapezoid.svg/220px-Trapezoid.svg.png
i need your trapezoid :( the one with 11 12 and 8
Excuse me,where's the base and height there?
It's just really confusing....Sorry...

Answers

2015-01-24T16:57:37+08:00
If the base a is 11, base b is 12 and the height is 8 the answer is 92cm
0
2015-01-25T10:00:29+08:00
Find the base 1 and base 2. To find it, the upper side for base 1. For example.. 16 m, 18 m, and also 30 m,, in this problem let's say the base 1 is 16 m and the base 2 is 18 m and the height is 30 m. The formula A= 1/2 x h x (b1 + b2). You need to add base 1 and base 2. So (16+18) -------- 30 16+18 = 34 so since we have 2, we need to divide 34 by 2 is equal to 17. 2 And we still have the height, we need to multiply 17 by 30. So the answer is 510. Since we need to find the area, the answer is 510m².
0