Mathematics - Properties of Triangle Question with Solution | TestHub
MathematicsProperties of Triangler1,r–R formula basedMedium2 minQB
MathematicsMediumsingle choice
In triangle ABC, r=2, B=60° and C=90°. Find r_1, the A-exradius.
Options:
Answer:
B
Solution:
With the usual A-exradius convention, r_1=r cot(B/2)cot(C/2)=2 cot30° cot45°=2.
Stream:JEESubject:MathematicsTopic:Properties of TriangleSubtopic:r1,r–R formula based
⏱ 2mℹ️ Source: QB
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