Construct the incentre of ∆ A B C with A B = 6 cm , ∠ B = 65 ∘ and A C = 7 cm Also draw the incircle and measure its radius.

Step 1 : Draw the ∆ A B C with A B = 6 cm , ∠ B = 65 ∘ and A C = 7 cm Step 2 : Construct the angle bisectors of any two angles ( A and B ) and let them meet at I . Then I is the incentre of ∆ A B C . Draw perpendicular from I to any one of the side A B to meet A B at D Step 3 : With I as centre and I D as radius draw the circle. This circle touches all the sides of the triangle internally. Step 4 : Measure inradius In radius = 1 . 9 cm .

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Mathematics Standard 9>Chapter 4 - Geometry>Solved Example

Tamil Nadu Board Solutions for Chapter: Geometry, Exercise 15: Solved Example

Author:Tamil Nadu Board

Tamil Nadu Board Mathematics Solutions for Exercise - Tamil Nadu Board Solutions for Chapter: Geometry, Exercise 15: Solved Example

Attempt the free practice questions on Chapter 4: Geometry, Exercise 15: Solved Example with hints and solutions to strengthen your understanding. Mathematics Standard 9 solutions are prepared by Experienced Embibe Experts.