Question

plz solve this question​

Answer 1

Answer:

GIVEN,  radius = 7cm

            area = πr² = 22/7 × 49 = 154 cm²

THEREFORE DISTANCE COVERED BY THE MINUTE HAND = 154cm²

Answer 2

The length of the minute hand is the diameter of a circle.

The area it will swept in one hour is equal to the circle's area since the hand rotates on its axis.

Therefore, area of circle

$= \pi \: {r}^{2} = \frac{22}{7} \times \frac{7}{2} \times \frac{7}{2} = \frac{11 \times 7}{2} = \frac{77}{2}$

77/2 = 38.5 cm^2

Therefore, it will cover an area of 38.5 cm