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olganol [36]
3 years ago
13

A circular piece of glass has a radius of 0.8 meters. The glass sells for $4.60 per square meter. What is the total cost of the

circular piece of glass?
Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
6 0

Given radius of circle = 0.8 meters

Area of circle = pi * r*r

Area =3.14 * 0.8 *0.8 = 2.0096 meter square

Cost of one square meter of glass = $4.60

cost of 2.0096 square meter of glass = 4.60*2.0096 = 9.24416

Cost of glass = $9.24416

Mama L [17]3 years ago
5 0

Here given that r= 0.8

Area of circular glass = area of circle = pi r^2

= 3.14 ( 0.8)^2 = 2.009 square meter

cost of one square meter = 4.60

cost of 2.009 square meter = 4.60 * 2.009 = 9.244

Answer $ 9.244 .

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