Question

Construct a triangle ABC in which BC = 5.8cm angle B= angle C = 30degree . Measure AB and AC. What do you observe.​

Answer 1

Step-by-step explanation:

It is an isosceles triangle

Step-by-step explanation:

To construct a traingle ABC

BC = 5.8cm

\angle B= 30∠B=30 °

\angle C= 30∠C=30 °

steps :

1) Draw a base line BC = 5.8 cm

2) taking B as a center draw an angle of 30°

3) again taking C as a center make an angle of 30°

4) let these angles meet at a point and name it as A

5) now measure AB and AC

Since the base angles are both 30°

using the theorem

sides opposite to equal angles are equal

and when two sides are equal in a triangle

then , its is an isoceles triangle

the figure shown below: