An isosceles

An isosceles trapezoid has base angles of 50° each, and its bases are 20 cm and 30 cm. Compute its area.

Correct answer:

A =  148.9692 cm2

Step-by-step explanation:

α=50°=50 c=20 cm a=30 cm  x=(ac)/2=(3020)/2=5 cm  tan α = h:x  h=x tanα=x tan50° =5 tan50° =5 1.191754=5.95877 cm  A=2a+c h=230+20 5.9588=148.9692 cm2

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