A lightning company produces conical lampshades of sectors of circles as illustrated. When the lamp shades are made lace is stitched around the circular base. Determine the cost of the lace if the manager decides to make 1500 lampshades and the lace costs $0.75 per metre.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

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step-by-step explanation:

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