1) Find the surface area of a sphere with a radius of 8 cm.
A 267.9 cm
B 803.8 cm ***
C 2143.6 cm
D 2010. cm
2) Find the surface area of a sphere with a radius of 4 ft.
A 452.2 m
B 150.7 m
C 113.0 m
D 904.3 m ***
3) Find the volume of a sphere with a radius of 4 ft.
A 33.5 ft ***
B 67.0 ft
C 267.9 ft
D 803.8 ft
4) For the pair of solids, find the value of the variable
A 3 cm
B 18 cm
C 16 cm ***
D 2 cm
5) For the repair of solids, find the value of the variable
A 12 mm
B 48 mm ***
C 20 mm
D 3 mm
6) A pyramid has a height of 5 in. And a surface area of 90 in. Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth. if necessary.
A 360 in
B 180 in ***
C 22.5 in
D 3.6 in
7) A rectangular prism width of 92 ft and a volume of 240 ft. Find the volume of a similar prism with a width of 46 ft. Round to th nearest tenth, if necessary.
A 30 ft ***
B 40 ft
C 60 ft
D 120 ft
PLEASE HELP ME! my answers are ( look above) oh and no i didnt just put any random answer these are actually my answers -_-
31 answers
Recall that for a sphere, v = 4/3 πr^3
for a prism, v = Base * height
for a pyramid, v = 1/3 Base * height
for #4,5, you need to describe the solids
for solids, the ratio of volumes id the cube of the ratio of sides.
2. A
3. C
4. D
5. A
6. A
7. A
Unit 2. Lesson 10
is incorrect I got a 6/7
Thank you
2. A
3. C
4. D
5. A
6. A
7. A
Hal is still correct! 2021 100%
and Jonas Hernandez are correct
Glad I checked my answers! TYSM
the havent changed the answers at all lol. Also thnx Hal for the 100%
2) A 452.2 m^2
3) C 267.9 ft^3
4) D 2cm
5) A 12mm
6) A 360 in^2
7) A 30 ft^3
Got 100% On Unit 2, lesson 10: Similar solids