Calculate 3161

In the isosceles trapezoid ABCD, the arm is 5.2 cm long, the middle bar is 7 cm long, and the height is 4.8 cm. Calculate the lengths of both bases.

Correct answer:

a =  9 cm
c =  5 cm

Step-by-step explanation:

r=5.2 h=4.8 s=7 x=r2h2=5.224.82=2 a=c+2x a+c = 2 s a+(a2x)= 2s 2a=2s+2x a=s+x=7+2=9 cm
c=a2 x=92 2=5 cm

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