MEDIUM
8th CBSE
IMPORTANT
Earn 100

On Monday, Rema made a polygon which is in the shape of a kite. Next day she made another polygon which has 10 times as many diagonals
of the polygon she made on Monday. How many diagonals are there in the second polygon and identify the polygon?

Important Questions on Mental Maths

MEDIUM
8th CBSE
IMPORTANT

Aarav and Aman are given a box containing polygons. Aarav takes a hexagon with equal sides and angles while Aman takes a rectangle. Identify whether the polygons are regular or irregular.

MEDIUM
8th CBSE
IMPORTANT

The teacher draws a quadrilateral on the board. One student called it ABCD whereas another student called it DCBA. Are they calling it the right way?

MEDIUM
8th CBSE
IMPORTANT

Ceiling of Karan's room is in the shape of a parallelogram whose one of the angle is two-thirds of its adjacent angle. Find the angles of the parallelogram.

MEDIUM
8th CBSE
IMPORTANT

If each exterior angle of a polygon is 15 degree, then how many sides does the shape have?

MEDIUM
8th CBSE
IMPORTANT

What is the measure of each exterior angle of a regular nonagon?

MEDIUM
8th CBSE
IMPORTANT

If a table in a museum to keep things is as shown below.

Question Image

What is the measure of each exterior angle of the table?

EASY
8th CBSE
IMPORTANT

Allan calculates that the sum of all interior angles of his garden is 3060 degrees. How many sides does the garden have?

EASY
8th CBSE
IMPORTANT
In a village, one of the farmers has a paddy field in the shape of a convex quadrilateral in which two of the interior angles are right angles. If the remaining two angles are in the ratio 2:3 , find the measure of all the interior angles.