Everywhere 36403

We cut out the largest possible round tablecloth from a square fabric of 150x150 cm. After setting, it hung around 20 cm everywhere. What is the area of ​​the round tabletop?

Correct answer:

S =  9503.3178 cm2

Step-by-step explanation:

a=150 cm r=a/2=150/2=75 cm p=20 cm  r1=rp=7520=55 cm  S=π r12=3.1416 552=9503.3178 cm2

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