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Florespatrick979go
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1. Given the two circles A and B. Circle A has a radius of 10cm. The radius of circle B is half the radius of circle A. Compare their areas.
Area of circle A Area of circle B
A = __________ A = ______________ r =10 cm
Explanation: _______________________________

2. If the length of minute hand is 12 cm, find the area swept by a clock’s minute hand in one hour.
�� = ����2

_________________________

Sagot :

PrincessStar1Lovego

Answer:

1.

Circle A

[tex]a = 314 {cm}^{2} [/tex]

Circle B

[tex]b = 78.54 {cm}^{2} [/tex]

Explanation:

The larger the radius, the larger the area.

2.

The minute hand goes round in an our.

So the area swept by the minute hand is:

[tex]452.39 {cm}^{2} [/tex]

Step-by-step explanation:

Hope it helps

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