1. If a triangle has angles 135^o, 15^o, 30^o. Is it an obtuse triangle?

Yes No

2. If a triangle has angles 115^o, 25^o, 40^o. Is it an acute triangle?

Yes No

3. If a triangle has angles 90^o, 60^o, 30^o. Is it a right angle triangle?

Yes No

4. A triangle has angles 60^o, 60^o, 60^o. Is it an equilateral triangle?

Yes No

5. If a triangle has angles 25^o, 75^o, 80^o. Is it an acute triangle?

Yes No

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

Equilateral Isosceles Right Angle traingle

7. If a triangle has 2 angles of 75^o. What is the measure of third angle in degree?

25 30 15

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

Equilateral Isosceles Both

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

15cm 45cm 5cm

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

Equilateral Isosceles Scalene