Welcome to your GRADE 8 MATHEMATICS CHAPTER 7
After carefully reading the following 30 questions, choose the correct answer.
1.
Which of the following is the formula for the volume of a cylinder?
2.
What is the total surface area of a cylinder with radius r and height h?
3.
A prism is a solid figure with:
4.
The lateral surface area of a right prism is calculated as:
5.
What is the volume of a right triangular prism with base area B and height h?
6.
Which solid figure has a circular base and one vertex?
7.
The formula for the lateral surface area of a right circular cone is:
8.
What is the volume of a right circular cone?
9.
A pyramid is a solid figure whose:
10.
The volume of any pyramid is given by:
11.
What is the formula for the surface area of a sphere with radius r?
12.
What is the volume of a sphere with radius r?
13.
If a cylinder and a cone have the same radius and height, the volume of the cylinder is:
14.
The slant height (s) of a right circular cone is related to radius (r) and height (h) by:
15.
A solid figure where every point on the surface is at an equal distance from the center is a:
16.
The lateral surface area of a regular pyramid is:
17.
What is the lateral surface area of a cylinder with radius 5 units and height 10 units?
18.
If the radius of a sphere is doubled, the surface area becomes:
19.
The total surface area of a right circular cone is given by:
20.
Which of the following is a characteristic of a regular pyramid?
21.
What is the volume of a cylinder if the base area is 20 cm$^2$ and the height is 5 cm?
22.
If the radius of a sphere is 3 units, what is its volume?
23.
A right prism has a height of 12 cm and a base perimeter of 20 cm. What is its lateral surface area?
24.
The perpendicular distance between the two bases of a prism is called its:
25.
For a sphere, what is the ratio of surface area to r2?
26.
A pyramid with a square base of side 4 cm and height 9 cm has a volume of:
27.
In a right circular cone, the segment joining the vertex to the center of the base is the:
28.
What is the base area of a cylinder with radius r?
29.
How many bases does a pyramid have?
30.
If the volume of a cone is 30π cm$^3$ and its base area is 10π cm$^2$, what is its height?
31.
The total surface area of a sphere is 100π. What is its radius?
