19. What is the circumference of a cylindrical jar with a diameter of 8 cm?
a. 12.25 cm
b. 15.22 cm
22.15 cm
d. 25.12 cm
20. The diameter of a circle is 3 meters, what is its circumference?
22.94 m
b. 4.92 m
c. 9.42 m
d. 10.42 m
a. 12.25 cm
b. 15.22 cm
22.15 cm
d. 25.12 cm
20. The diameter of a circle is 3 meters, what is its circumference?
22.94 m
b. 4.92 m
c. 9.42 m
d. 10.42 m
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Answer:
19. D. 25.12 cm
20. C. 9.42 m
Step-by-step explanation:
19. C=π×d
= 3.14 × 8
= 25.12 cm
20. C= π×d
= 3.14 × 3
= 9.42 m