Answer:
note: the diameter is 2 times the radius, so to get the radius, divide the diameter by 2. Area is equal to πr²
1. Radius = 6.5 cm
r² = 42.25
A = 132. 73 cm²
2. Radius = 9 m
r² = 81 m
A = 254.47 m²
3. Radius = 10 cm
r² = 100 cm
A = 314.16 cm²
4. A = πr²
A = (3.14)(14)²
A = 615.75 m²
5. d = 2r
40 cm = 2r
divide both sides by 2
r = 20 cm
A = πr²
= (3.14)(20)²
A = 1256.64 cm²
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Step-by-step explanation:
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Answers & Comments
Answer:
note: the diameter is 2 times the radius, so to get the radius, divide the diameter by 2. Area is equal to πr²
1. Radius = 6.5 cm
r² = 42.25
A = 132. 73 cm²
2. Radius = 9 m
r² = 81 m
A = 254.47 m²
3. Radius = 10 cm
r² = 100 cm
A = 314.16 cm²
4. A = πr²
A = (3.14)(14)²
A = 615.75 m²
5. d = 2r
40 cm = 2r
divide both sides by 2
r = 20 cm
A = πr²
= (3.14)(20)²
A = 1256.64 cm²
pakibrainliest po hehe hope this helps!
Answer:
See the picture
Step-by-step explanation:
pa brainliest answer po salamat