perplexus.info :: Shapes : Sixty Degree Decision

Sixty Degree Decision (Posted on 2016-08-11)

For triangle PQR it is known that:
|PQ|*|PR| =8*R*r, where R and r are respectively the circumradius and the inradius of triangle PQR.
Can ∠QPR be ≥ 60^o?
If so, give an example.
If not, prove it.

Submitted by K Sengupta

Rating: 4.0000 (1 votes)

Solution: (Hide)

No. < QPR < 60^o.
For a detailed explanation, refer to the solution submitted by Harry in this location.

Comments: ( You must be logged in to post comments.)

	Subject	Author	Date
	Solution	Harry	2016-08-12 06:52:22

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