Chapter 9.1, Problem 10WE

Solution

To draw: a circle and then inscribe an acute isosceles triangle in the circle.

Concept Used:

Acute triangle: It is a triangle whose all angles are acute, that is, all three angles are less than $90°$ .

Isosceles triangle: It a triangle whose two angles are congruent.

Explanation:

First draw a circle with centre O as shown below:

Now, draw an acute isosceles triangle such that each of its vertexes lies on the circle.

This is the required figure.