Answer:
Diameter
13 cm=132.665
18 cm=254.34
20 cm=314
Step-by-step explanation:
Note:If the equation is about diameter it must be divided into two
Diameter. Radius. r². Area
13 cm. 7.5 cm. 3.14×7.5×7.5. 132.665
18 cm 9 cm. 3.14×9×9. 254.34
20 cm. 10 cm. 3.14×10×10. 314
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Answer:
Diameter
13 cm=132.665
18 cm=254.34
20 cm=314
Step-by-step explanation:
Note:If the equation is about diameter it must be divided into two
Diameter. Radius. r². Area
13 cm. 7.5 cm. 3.14×7.5×7.5. 132.665
18 cm 9 cm. 3.14×9×9. 254.34
20 cm. 10 cm. 3.14×10×10. 314