Mathematics - Properties of Triangle Question with Solution | TestHub

MathematicsProperties of Triangler1,r–R formula basedMedium2 minQB

MathematicsMediumsingle choice

If r=1, R=5, $Δ$ =10 in triangle ABC, find ab+bc+ca.

Answer:

Solution:

s= $Δ$ /r=10. The identity ab+bc+ca= $s^{2}$ + $r^{2}$ +4Rr gives 100+1+20=121.

Stream:JEESubject:MathematicsTopic:Properties of TriangleSubtopic:r1,r–R formula based

⏱ 2mℹ️ Source: QB

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