A rhombus shaped sheet with perimeter 40cm and one diagonal 12cm is painted on both sides at the rate of 5/cm square. find the cost of painting
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Answer:
given:
perimeter = 40cm
daigonal = 12cm
Step-by-step explanation:
• perimeter = 40 cm
4a (sides) = 40 cm
a = 10cm
• area = ½p √4a²- (12)²
= ½(12) √4(10)² - 144
= 6 √4(100) - 144
= 6√16
=96cm²
•Total area of both sides = 2*96cm²
= 192cm²
•cost of painting = 5*192cm²
= RS.960
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