Question

Which of the following statement is true?

a) All equilateral triangles are isosceles triangle
b) All isosceles triangles are equilateral triangle
c) All triangles are acute angled triangle
d) An obtuse-angled triangle can have two obtuse angles​

Answer 1

Answer:

A is the true

Step-by-step explanation:

• hope it helps

Answer 2

Answer:

(b) All isosceles triangles are similar - untrue

Step-by-step explanation:

Statement b is False.

All isosceles triangles are not similar.

An isosceles triangle is one in which 2 out of the 3 sides are equal in length and that their 2 base angles are equal. Two isosceles triangles can individually have two sides equal, but they may not be similar as their sides could be of different measurement.

Equilateral triangles are similar and all circles are similar.