Asked by deepanshu

A rhombus shaped sheet whose perimeter is 32cm and one of the diagonal is 10cm long painted on both the sides at the rate of rs5 per Sam.find the cost of painting.
Answered by Reiny
All four sides are equal, so each side of the rhombus is 8 cm
get angle Ø , opposite the 10 cm diagonal

10^2 = 8^2 + 8^2 - 2(8)(8)cosØ
cosØ = 7/32, then sinØ = 5√39/32

area = 8(8)sinØ
= ...

you take over
Answered by ravindra
deepanshu your answer is madarchod bhosadi ka
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