Question

in the figure shows the innermost lane of a running track at each end of the rectangle is a semicircle how much distance would Kanika cover in running ones round the track ​

Answer 1

Answer:

512 m

Step-by-step explanation:

perimeter of figure = perimeter of rectangle + perimeter of 2 semicircle s

= 2(l+b) + 2πr

=2(112+56) + 2 × 22/7 × 56/2

=2(168) + 176

=336 + 176

= 512 m

Hence , Kanika will cover 512 m.

Answer 2

Step-by-step explanation:

Perimeter = (2 x length of the rectangle) + circumference of the circle.

length of rectangle = 112 m

Circumference of the semicircle = πr = π(28) m

Required length = (2 x 112) + (56π) = 224+56π m

= 224 + 176 = 400 m

Thus, Kanika covers 400 m for one lap