Diameter 3545

A 2.4 m wide path will be paved around a circular lake with a diameter of 8.2 m. How much will the paving cost when 1m square costs 350 kc?

Correct answer:

p =  27972.74 Kc

Step-by-step explanation:

D=8.2 s=2.4 r=D/2=8.2/2=1041=4.1 S1=π r2=3.1416 4.1252.8102 S2=π (r+s)2=3.1416 (4.1+2.4)2132.7323 S=S2S1=132.732352.810279.9221 p=350 S=350 79.9221=27972.74 Kc



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