Question

1. If you draw triangles with the diameter AB of a circle on one side, write whether the following third corners are outside, inside or on the circle.

a) 90
b) 130
c) 40°​

Answer 1

Answer:

Steps of Construction:

1. Construct △ABC having sides BC=7cm,AC=5cm and AB=6cm.

2. Draw angle bisector of any two angles say ∠B and ∠C of △ABC and let these intersect at a point say O.

3. Draw perpendicular from O on any side of triangle, say OP on BC.

4. Taking O as centre and OP as radius, draw a circle.

5. The circle touches the other two sides of triangle. This will be the required in circle of the triangle.

Radius, OP of in circle is 1.6 cm.