perplexus.info :: Geometry : Radius missing

Radius missing (Posted on 2018-03-07)

This right-angled triangle ABC has sides of lengths:
AC=12cm, BC=5cm and AB=13cm.
1. The diameter CD of the semicircle lies on the 12cm side.
2. The AB side is a tangent to the circle.

What is the radius R of the semi circle?

Submitted by Ady TZIDON

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Solution: (Hide)

R=10/3
Detailed solution @broll & @jer

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

Subject	Author	Date
Simple solution	Jer	2018-03-07 09:09:39
possible solution	broll	2018-03-07 08:53:29

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