I. Answer each question. Write the letter of the correct answer on the blank. 1. In a given circle, the radius is 9 cm. What is its diameter?
A. 18 m B.18 cm C. 4.5 m D. 4.5 cm
2. Which of the following is the formula in solving for the area of a circle?
A. A= 2TT B. A= Tir2 C. A= id D. A=2 TTr2
3. The diameter of a circle is8 cm, what is its area?
A.50.24 cm2 B.200.96 cm2 C.25.12 cm2 D.100.48cm2
4. What is the radius of a circle if the area is 36m2?
A. 0.339 m
B. 3.39 m
C. 33.9 m
D. 339m
5. What is the area of a circle if the radius is 5m?
A. 15. 7 m2
B. 31.4 m2
C. 78.5 m2
D. 157 m2
A. 18 m B.18 cm C. 4.5 m D. 4.5 cm
2. Which of the following is the formula in solving for the area of a circle?
A. A= 2TT B. A= Tir2 C. A= id D. A=2 TTr2
3. The diameter of a circle is8 cm, what is its area?
A.50.24 cm2 B.200.96 cm2 C.25.12 cm2 D.100.48cm2
4. What is the radius of a circle if the area is 36m2?
A. 0.339 m
B. 3.39 m
C. 33.9 m
D. 339m
5. What is the area of a circle if the radius is 5m?
A. 15. 7 m2
B. 31.4 m2
C. 78.5 m2
D. 157 m2
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