Triangle Quiz

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

45° 90° 60°

If one angle of triangle is 90°.What it is called as?

right angle triangle acute angle triangle obtuse angle triangle

All angles of a triangle are equal in:

scalene triangle isosceles triangle equilateral triangle

Two sides of a triangle are equal in:

scalene triangle isosceles triangle equilateral triangle

The perimeter of a traingle with sides 3cm, 4cm, 5cm respectively:

10cm 12cm 15cm

Which one of below is famous formula to calculate the area of traingle?

Heron's formula Hero formula Heroine formula

If perimeter of isosceles traingle is 10cm & two equal sides are 3cm each.Length of third side is:

3cm 4cm 5cm