The diameter of a circular well is 1 m 20 em. The diameter of a concre

1.	The diameter of a circular well is 1 m 20 em. The diameter of a concrete lid is20 cm more than the diameter of the well. What is the area of the concrete lid?
Answer» Diameter of circular well = 1.2 m Then diameter of concrete lid d = 1.4 m Area of concrete lid = pid/2d/2= 22/71.4/21.4/2= 22.1.7= 22*.07= 1.54 m^2

The diameter of a circular well is 1 m 20 em. The diameter of a concrete lid is20 cm more than the diameter of the well. What is the area of the concrete lid?

Answer»

Diameter of circular well = 1.2 m

Then diameter of concrete lid d = 1.4 m

Area of concrete lid = pi*d/2*d/2= 22/7*1.4/2*1.4/2= 22*.1*.7= 22*.07= 1.54 m^2