EASY
8th CBSE
IMPORTANT
Earn 100

How many diagonals are there in an octagon?

100% studentsanswered this correctly

Important Questions on Polygons

EASY
8th CBSE
IMPORTANT
Mathematics Class 8>Chapter 14 - Polygons>EXERCISE>OBJECTIVE QUESTIONS
How many diagonals are there in a polygon having 12 sides?
MEDIUM
8th CBSE
IMPORTANT
Mathematics Class 8>Chapter 14 - Polygons>EXERCISE>OBJECTIVE QUESTIONS
A polygon has 27 diagonals. How many sides does it have?
MEDIUM
8th CBSE
IMPORTANT
Mathematics Class 8>Chapter 14 - Polygons>EXERCISE>OBJECTIVE QUESTIONS
The angles of a pentagon are x°, (x+20)°, (x+40)°, (x+60)° and (x+80)° . The smallest angle of the pentagon is 
MEDIUM
8th CBSE
IMPORTANT
Mathematics Class 8>Chapter 14 - Polygons>EXERCISE>OBJECTIVE QUESTIONS
The measure of each exterior angle of a regular polygon is 40°. How many sides does it have?
MEDIUM
8th CBSE
IMPORTANT
Mathematics Class 8>Chapter 14 - Polygons>EXERCISE>OBJECTIVE QUESTIONS
Each interior angle of a polygon is 108°. How many sides does it have?
MEDIUM
8th CBSE
IMPORTANT
Mathematics Class 8>Chapter 14 - Polygons>EXERCISE>OBJECTIVE QUESTIONS
Each interior angle of a polygon is 135°. How many sides does it have?
MEDIUM
8th CBSE
IMPORTANT
Mathematics Class 8>Chapter 14 - Polygons>EXERCISE>OBJECTIVE QUESTIONS
In a regular polygon, each interior angle is thrice the exterior angle. The number of sides of the polygon is  
MEDIUM
8th CBSE
IMPORTANT
Mathematics Class 8>Chapter 14 - Polygons>EXERCISE>OBJECTIVE QUESTIONS
Each interior angle of a regular decagon is