Fun with Triangles

Quiz on Triangles

1) What is the third angle for the triangle where angle1 = 30° and angle2 = 60°?
45°
60°
90°

2) Which of the following can form a right angled triangle?
(5,12,13)
(10,8,5)
(17,8,9)

3) Which of the following triangles have all sides similar?
Equilateral Triangle
Isosceles Triangle
Right angled Triangle

4) In right triangle, the side opposite to right angle is called?
Hypotenuse
Angle Bisector
Altitude

5) If a triangle has its sides equal to 5cm, 4cm and 6cm, then find its perimeter.
10
15
20

6) If the height of a triangle is 6cm and base length is equal to 10 cm, then find its area.
10
15
30

7) A triangle whose all angles are less than 90 degrees is called
Equilateral
Obtuse
Acute

8) A triangle whose all angles are greater than 90 degrees is called
Equilateral
Obtuse
Acute

9) What is the sum of all angles in triangle?
100°
360°
180°

10)How many sides does triangle have ?
3
2
1