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Igoryamba
3 years ago
6

Help anyone can help me do this question,I will mark brainlest.​

Mathematics
2 answers:
Tcecarenko [31]3 years ago
6 0

Answer:

Solution given:

note=diameter=2*radius

1:

Area of circle =πr²=22/7*(21/2)²=<u>346.5cm²</u>

2:

radius (r)= 3 ½=7/2cm

Area of circle =πr²=22/7*(7/2)²=<u>38.5cm²</u>

3;

radius (r)=14/2=7cm

Area of circle =πr²=22/7*(7)²=<u>154cm²</u>

note:

π=3.14 or 22/7

<h3>i use 22/7 over here</h3>
slavikrds [6]3 years ago
6 0
What he said^^!:) have a nice day
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