Unit six surface area lesson eight surface area of composite 3-D figures. Five quick check questions need help please

Answer 1

1. What is the formula for finding the surface area of a rectangular prism?
a) SA = 2lw + 2lh + 2wh
b) SA = l*w*h
c) SA = l + w + h
d) SA = l^2 + w^2 + h^2

2. How can you find the surface area of a composite 3-D figure?
a) Add the surface areas of each individual figure
b) Subtract the surface areas of each individual figure
c) Multiply the surface areas of each individual figure
d) Divide the surface areas of each individual figure

3. What is the surface area of a cylinder with a radius of 4 cm and a height of 10 cm?
a) 208 cm^2
b) 268 cm^2
c) 320 cm^2
d) 400 cm^2

4. What is the formula for finding the surface area of a sphere?
a) SA = 4πr
b) SA = 4πr^2
c) SA = 2πr
d) SA = 2πr^2

5. What is the surface area of a cone with a radius of 6 cm and a slant height of 8 cm?
a) 96π cm^2
b) 144π cm^2
c) 192π cm^2
d) 288π cm^2