Question

4. Find the area of a rhombus one side of which measures 20 cm and one of whose diagonal
is 24 cm​

Answer 1

Answer:

if diagonal and side is given then

Area of rhombus = 1/2 p square root (4a^2 - p^2)

a = side=20 and p = diagonal=24

A = 1/2 (24 sqroot(4(20)^2 - 24^2))

A = 1/2 (24 sqroot ( 1600-576))

A = 1/2 (24 sqroot(1024))

A = 1/2 (24×32)

A = 1/2 (768)

A = 384

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