Answered

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A. Read and solve each problem. Write your complete answer on the line.
No. 1 is done for you
1. A sphere has a radius of 28 cm. What is its surface area?
9.847.04 cm2
2. An inflated balloon during the birthday party has a diameter of 27 cm.
What is its surface area?
3. What is the surface area of a globe found in the library with the radius of 78.3 cm.?
4. A library has an aquarium in a shape of a sphere. What is the surface area
if the radius is 30.6 cm?
5. A cosmetics company makes a small sphere to wrap a moisturizer before shipping.
Find the surface area if the diameter is 7 cm?
r = diameter
2​

Sagot :

Jeremiereuyan16idn

Answer:

2. surface area 572.555 cm^2

3. surface area 19260.76 cm^2

4. surface area 2941.66 cm^2

5. surface area 38.4845 cm^2