Engineering Board Exam Reviewer · Quadrilaterals · hard

An isosceles trapezoid has bases 10 and 24 and legs of length 13. Find its area.

1. 221
2. 186.23
3. 170
4. 204.5

Answer

B. 186.23

Solution

Each overhang is 24-10/2=7, so the height is sqrt(132-72)=sqrt(120)=10.95. A= 12(10+24)(10.95)=186.22.

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