ICSE ICSE Class 8 - CISCE Question Bank Solutions for Mathematics

Find the number of sides in a regular polygon, if its interior angle is: `1 1/5` of a right angle

Add : a − 3b + 3; 2a + 5 − 3c; 6c − 15 + 6b

Given, A = {Triangles}, B = {Isosceles triangles}, C = {Equilateral triangles}. State the following statement is true or false. Give reasons.
A ⊂ B

Add : 13ab − 9cd − xy, 5xy, 15cd − 7ab, 6xy − 3cd

Find the number of sides in a regular polygon, if its exterior angle is : `1/3` of right angle

Given, A = {Triangles}, B = {Isosceles triangles}, C = {Equilateral triangles}. State the following statement is true or false. Give reasons.

B ⊆ A

Find the number of sides in a regular polygon, if its exterior angle is: two-fifth of right angle

Given, A = {Triangles}, B = {Isosceles triangles}, C = {Equilateral triangles}. State the following statement is true or false. Give reasons.

C ⊆ B

Is it possible to have a regular polygon whose interior angle is : 170°

Add : x³ − x²y + 5xy² + y³, - x³ − 9xy² + y³, 3x²y + 9xy²

Given, A = {Triangles}, B = {Isosceles triangles}, C = {Equilateral triangles}. State the following statment is true or false. Give reasons.

B ⊂ A

Is it possible to have a regular polygon whose interior angle is:

138°

Given, A = {Triangles}, B = {Isosceles triangles}, C = {Equilateral triangles}. State the following statement is true or false. Give reasons.

C ⊂ A 

Is it possible to have a regular polygon whose each exterior angle is: 80°

Given, A = {Triangles}, B = {Isosceles triangles}, C = {Equilateral triangles}. State the following statement is true or false. Give reasons.

C ⊆ B ⊆ A 

Find the total savings of a boy who saves ₹ (4x – 6y), ₹ (6x + 2y), ₹ (4y – x) and ₹ (y – 2x) for four consecutive weeks.

Is it possible to have a regular polygon whose each exterior angle is: 40° of a right angle.

Subtract : 4xy² from 3xy²

Subtract : −2x²y + 3xy² from 8x²y

Find the number of sides in a regular polygon, if its interior angle is equal to its exterior angle.