Question

A boy complete a semicircle of radius 7m in 5sec the distance traveled by the boy is

Answer 1

given,
semicircle of radius (r) =7m
time =5sec
find,
distance travelled by the boy=?
sollution,
area of semicircle = (pi ×r×2)/2. or. pi×r
same as distance =( (22÷7)×7×2)/2
distance travelled by boy = 21.9m or 22m

Answer 2

Answer: The distance traveled by the boy is 58 m in 5 sec.

Step-by-step explanation:

Since we have given that

there is a semi circle :

Radius of semi circle = 7 m

A boy complete a semicircle .

So, Distance covered by that boy is given by

$2\pi r+d\\\\=2\times \dfrac{22}{7}\times 7+2\times 7\\\\=2\times 22+14\\\\=44+14\\\\=58\ m$

Hence, the distance traveled by the boy is 58 m in 5 sec.