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sunil kumar

· started a discussion

· 1 Months ago

question language (Question: 113571.0 )

pls explain this question in detail

Question:
What will be the area of a rhombus, whose one side is 20 cm and one diagonal is 24 cm?
Options:
A) 240 cm2
B) 480 cm2
C) 384 cm2
D) 386 cm2
Solution:
Ans: (c)

Let length of another diagnol = 2x

Diagnols of rhombus intersect at right angles , so by using pythagorus theorem,

\(x^2 + 12^ 2 = 20^ 2\)

Therefore x = 16 , So  diagonal = 2*16 =32

Area of rhombus

\(\cfrac{diagonal × diagonal}{2}\)
= \(\cfrac{32×24}{2}\)  = 384 cm2

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
We have explained it again
please check the solution now.

Best wishes
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