Take this quiz!

If a triangle has angles 135⁰, 15⁰, 30⁰. Is it an obtuse triangle?

yes no

If a triangle has angles 115⁰, 25⁰, 40⁰. Is it an acute triangle?

yes no

If a triangle has angles 90⁰, 60⁰, 30⁰. Is it a right angle triangle?

yes no

A triangle has angles 60⁰, 60⁰, 60⁰. Is it an equilateral triangle?

yes no

If a triangle has 2 sides with equal lengths and 75⁰ angle between them. What is the type of triangle?

equilateral isosceles right angle traiangle

If a triangle has 2 angles of 75⁰. What is the measure of third angle in degree?

25 30 15

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

15 45 5