Answer:
1. A. 200.96 sq. cm.
A=πr²=3.14(8×8)=3.14(64)=200.96
2. B. 28.26 sq. m.
A=πr²=3.14(3×3)=3.14(9)=28.26
3. C. 12.56 sq. dm.
A=πr²=3.14(2×2)=3.14(4)=12.56
4. D. 36.2984 sq. m.
A=πr²=3.14(3.4×3.4)=3.14(11.56)=36.2984
5. E. 5.3066 sq. dm.
A=πr²=3.14(1.3×1.3)=3.14(1.69)=5.3066
Step-by-step explanation:
Formula to find the area of a circle:
A=πr² or π×(r×r)
The value of pi(π) is 3.14.
If the diameter was given divide the diameter by two, then you must follow the formula.
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Answers & Comments
Answer:
1. A. 200.96 sq. cm.
A=πr²=3.14(8×8)=3.14(64)=200.96
2. B. 28.26 sq. m.
A=πr²=3.14(3×3)=3.14(9)=28.26
3. C. 12.56 sq. dm.
A=πr²=3.14(2×2)=3.14(4)=12.56
4. D. 36.2984 sq. m.
A=πr²=3.14(3.4×3.4)=3.14(11.56)=36.2984
5. E. 5.3066 sq. dm.
A=πr²=3.14(1.3×1.3)=3.14(1.69)=5.3066
Step-by-step explanation:
Formula to find the area of a circle:
A=πr² or π×(r×r)
The value of pi(π) is 3.14.
If the diameter was given divide the diameter by two, then you must follow the formula.