Question

Please answer fast .

Answer 1

150 m

Explanation:

Total distance walked

= perimeter of the garden

= 42 + 42 + length of arc

`= 84 + ( \theta)/(360 \degree) * 2\pi \: r \\ \\ = 84 + (90 \degree)/(360 \degree) * 2 * (22)/(7) * 42 \\ \\ = 84 + (1)/(4) * 44 * 6 \\ \\ = 84 + 11 * 6 \\ \\ = 84 + 66 \\ \\ = 150 \: m`