#1 ok
#2 nope, since all of the faces of a cube are congruent.
#3 ok
#4 nope. A = 4πr^2 = 100π
#5 nope. You using the diameter?
Which solid has one base that is a rectangle and four lateral surfaces that are triangles?
A. triangular pyramid ***
B. cone
C. rectangular prism
D. rectangular pyramid
A solid with two parallel and congruent bases cannot be which of the following?
A. cone
B. prism
C. cylinder
D. cube ***
A cone has a radius of 40 cm and a volume of 1,875 cm^3. What is the volume of a similar cone with a radius of 16 cm?
A. 120 cm^3 ***
B. 300 cm^3
C. 340 cm^3
D. 750 cm^3
What is the surface area of a sphere with a radius of 5 meters rounded to the nearest square meter?
A. 250 m^2
B. 314 m^2
C. 340 m^2
D. 523 m^2 ***
What is the volume of a sphere with a radius of 4 meters rounded to the nearest square meter?
A. 67 m^3
B. 201 m^3
C. 268 m^3
D. 804 m^3 ***
Please check my answers.. thank you!
1 answer
13 answers