Triangle Quiz

1. If a triangle has angles 135⁰, 15 ⁰, 30 ⁰. Is it an obtuse triangle?

yes no

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

15cm 45cm 5cm

3. If a triangle has 2 sides with equal lengths and 75 ⁰ angle between them. What is the type of triangle?

Equilateral Isosceles Right Angle traingle

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

25 30 15

5. If a triangle has sides of 2cm, 3cm, 4cm, what is the type of triangle?

Equilateral Isosceles Scalene

6. If a triangle has 2 sides with equal lengths and 60 ⁰ angle between them. What is the type of triangle?

Equilateral Isosceles Both

7. If a triangle has angles 115 ⁰, 25 ⁰, 40 ⁰. Is it an acute triangle?

yes no

8. A triangle has angles 60 ⁰, 60 ⁰, 60 ⁰. Is it an equilateral triangle?

yes no

Quiz