A round table cover has six equal designs if the radius of the cover is 28 cm find the cost of making the design at the rate of 0.35cm
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Step-by-step explanation:
let the angle be 360/6=60
the area of design= ar of sector-ar of triangle
(as one angle is 60 and two sides of the triangle are equal i.e radii the triangle is a equilateral triangle)
Ф/360*πr^2-√3/4*a^2
28*28(1/6*22/7-√3/4)*6
=77.47*6
=464.82
cost=0.35*464.82
=162.68 Rs
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