Question

Decide whether the statement is always, sometimes, or never true.
If one angle of an isosceles triangle measures 60 degrees, then the triangle is equilateral

Answer 1

yes

Answer 2

alwys true

Answer 3

statement is always true.

Answer 4

true.If the triangle is isosceles, then two angles are equal. If one angle is 60 degrees, then there are 180 - 60 = 120 degree left for the two equal angles. 120/2 = 60. so all three angles are 60 degrees.