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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
_________________________
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
_________________________
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Answer:
1.
Circle A
Circle B
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:
Step-by-step explanation:
Hope it helps
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