Question

Find the diagonal of a rectangle whose length is 16cm and area is 192 sq cm

Answer 1

area = l×b
b=12
by Pythagoras theorem
diagonal=√(16^2 + 12 ^2)
=√(400)
=20
diagonal of rectangle is 20 cm

Answer 2

let x be width
x*16=192
x=12
 as rectangle has a right angle so its diagonal will be hypotunuse
(12)^2+(16)^2=h^2
144+256=h^2
400=h^2
20=h



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