Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let in a right angled triangle, the smallest angle be 
. If a triangle formed by taking the reciprocal of its sides is also a right angled triangle, then 
is equal to:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
< A = θ
< B = 90 − θ
a=smallest side
c 2 = a 2 + b 2
Use a = 2RsinA = 2Rsin θ
b = 2RsinB = 2Rsin(90 − θ) = 2Rcos θ
c = 2RsinC = 2 sin 90 ∘ = 2R
1 − sin 2 θ = sin 2 θ (1 − sin 2 θ) + sin 2 θ
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