Question

find the length of diagonal of the rectangle whose side are 16 cm and 12 CM

Answer 1

Its a right angle
B = 16 cm
P = 12 cm
H = ?
H² = P² + B²
= 256 + 144
= 400
so, H = √400
H = 20 cm

so it's diagonal is 20 cm

Answer 2

√w²+l²
here w=16
l=12
√256+144
√400=20
length of diagonal is 20
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