Directions: Solve the following problems. Use the 4-Step Plan.
Write your answer on a separate sheet of paper.
1. If the diameter of a circular wall clock is 30 cm, what is the area
of the clock?
2. Find the area of a circular pool whose radius is 2 meters.
3. Father will fence a circular newly planted garden whose radius
is 3.5 m. How many meters of fencing material will he use?
Write your answer on a separate sheet of paper.
1. If the diameter of a circular wall clock is 30 cm, what is the area
of the clock?
2. Find the area of a circular pool whose radius is 2 meters.
3. Father will fence a circular newly planted garden whose radius
is 3.5 m. How many meters of fencing material will he use?
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Answer:
1. area would be 225π cm² or 706.85 sq
2. 12.57m²
3. 21.98 m
Step-by-step explanation:
1. The area of a circle is pi times the radius squared, radius is twice of diameter so if the diameter is 30 cm then the radius is 15cm.
2. A = π r 2 = π · 22 ≈ 12.56637 m²
3. c = 2 x 3.5 x 3.14 = 21.98 m