the minute hand of a clock is 9 cm long find the distance that the tip of the minute hand will move in 45 minutes (use pie =3.14)
Answers
Answered by
3
Answer:
The area covered is 190.5 cm²
Step-by-step explanation:
Radius of clock = Length of minute hand
= 9 cm
Area covered in 45min =
Area of clock - Area of quadrant
= πr² - 1/4πr² = 3.14 x 81 - (3.14 x 81) / 4
= 254 - 254/4 = 254 - 63.5 = 190.5 cm²
Answered by
1
Answer:
the answer is 42.39
Step-by-step explanation:
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