Circumference 7823

The bases are 9 cm and 5 cm long in a rectangular trapezoid. The length of the shorter arm is 3 cm. Calculate its circumference and area.

Correct answer:

o =  22 cm
S =  21 cm2

Step-by-step explanation:

a=9 cm c=5 cm d=3 cm  x=ac=95=4 cm b=x2+d2=42+32=5 cm  o=a+b+c+d=9+5+5+3=22 cm
S=2a+c d=29+5 3=21 cm2

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