What is the third angle for the triangle where angle1=45° and angle2 = 45°?

45° 60° 90°

If a triangle has an angle of 90 degrees, what is it called?

obtuse acute right-angled

Triangle with one angle greater than 90 degrees ?

obtuse equilateral isosceles

A triangle with all three angles less than 90 degrees ?

equilateral acute right-angled

A triangle having at least two equal sides ?

acute isosceles right-angled

The sum of the measures of all three sides of a triangle

area perimeter diameter

In right triangle, the side opposite to right angle is called ?

hypotenuse altitude angle-bisector

In equilateral triangle, all three angles are equal ?

true false sometimes

The perimeter of a equilateral triangle is 15cm. What is the length of one side?

15 3 5

The sum of all the angles of a triangle ?

90 degrees 360 degrees 180 degrees