West Bengal Board Solutions for Chapter: Geometrical Concepts Based on Different Instruments of Geometry Box., Exercise 15: Let's Workout- 17.2

$A, B \& C$ are three non-collinear points. Join $AB, BC \& CA$ and write the side opposite to side $\angle ACB.$

Hypotenuse is the smallest side of a right-angled triangle.

One angle of a right-angled triangle is $90°$.

There are at least two acute angles in a triangle.

Each equilateral triangle is called an isosceles triangle.

Sum of three angles of a triangle is $360°$.

Right-angled triangle can never be an equilateral triangle.

Right-angled triangle can not be an isosceles triangle.