Mathematics - Properties of Triangle Question with Solution | TestHub
MathematicsProperties of Triangler1,r–R formula basedMedium2 minQB
MathematicsMediumsingle choice
In triangle ABC, r_1=3, r_2=10, r_3=15. Find R.
Options:
Answer:
D
Solution:
1/r=1/r_1+1/r_2+1/r_3=1/3+1/10+1/15=1/2, so r=2. From r_1+r_2+r_3=r+4R, 28=2+4R, so R=13/2. Numeric choice index 4 is D.
Stream:JEESubject:MathematicsTopic:Properties of TriangleSubtopic:r1,r–R formula based
⏱ 2mℹ️ Source: QB
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