Mastering Surface Area Concepts

A triangular pyramid is made up of several 2D shapes, which are.....

Out of the three solids, which has:

a) the most sides?

b) the least sides?

• Most sides: triangular pyramid;
  
  Least sides: triangular prism

• Most sides: pentagonal prism;
  
  Least sides: triangular pyramid.

• Most sides: triangular prism;
  
  Least sides: pentagonal pyramid.

• Most sides: triangular pyramid;
  
  Least sides: pentagonal prism.

What is the surface area of a cube with a side length of 5 cm?

• 125 cm²

• 200 cm²

• 150 cm²

• 100 cm²

Calculate the surface area of a rectangular prism with dimensions 4 cm, 6 cm, and 10 cm.

• 300 cm²

• 200 cm²

• 240 cm²

• 248 cm²

A cylinder has a diameter of 6 cm and a height of 7 cm. What is its surface area?

• 200 cm²

• 150 cm²

• 175 cm²

• 188.4 cm²

Find the surface area of a sphere with a radius of 4 cm.

• 48π cm²

• 80π cm²

• 32π cm²

• 64π cm²

If a cube has a surface area of 150 cm², what is the length of one side?

• 7 cm

• 5 cm

• 6 cm

• 4 cm

What is the formula for the surface area of a sphere?

• 4πr²

• 6πr²

• 2πr²

• πr²

A box is in the shape of a rectangular prism with dimensions 2 m, 3 m, and 4 m. What is its surface area?

• 48 m²

• 40 m²

• 52 m²

• 60 m²

If the radius of a sphere is doubled, how does its surface area change?

• The surface area increases by a factor of 4.

• The surface area increases by a factor of 2.

• The surface area remains the same.

• The surface area decreases by a factor of 4.