# CBSE Class 8 Maths Sample Papers

**Marks: 25
Duration: 1 hour**

##### Section A: Each question carries 1 mark

*Question 1*: What is the sum of interior angles of a quadrilateral?

*Question 2*: What is the additive inverse of -6/7?

*Question 3*: The opposite angles of a parallelogram are 2x degree and ( x + 40 ) degree. Find x.

##### Section B: Each question carries 2 marks

*Question 1*: Can a polyhedron have 20 faces , 30 edges and 12 vertices ? Explain with Euler’s formula.

*Question 2*: Find without calculation which of the following number is a perfect square ?

32 , 148 , 176 , 5230 , 1444

*Question 3*: The sum of two numbers is 34. One of the numbers exceeds the other by 18. Find the numbers.

*Question 4*: Find x if 0.5x – 1.6 = 0.2 ( x + 34 )

##### Section C: Each question carries 3 marks

*Question 1*: The lateral surface area of a hollow cylinder is 1120 sq cm. It is cut along its height and formed a rectangular sheet of breadth 28 cm. Find the perimeter of rectangular sheet?

*Question 2*: The radius of a right circular cylinder is 12 cm and its height is 18 cm. Find its volume, lateral surface and the whole surface area.

##### Section D: Each question carries 4 marks

*Question 1*: Jacob's father was 32 years of age when he was born while his mother was 27 year old when his brother five years younger to him was born. What is the difference between the ages of her parents?

*Question 2*: The exterior angles of a convex pentagon measure (16x + 20), 4x, (5x + 16), (8x - 12), and (3x + 12). Determine the measure of the largest interior angle.