Question

The adjoining figure shows a rectangle and a
semicircle. The perimeter of the shaded region is
(a) 70 cm
(b) 56 cm
(c) 78 cm
(d) 46 cm
​

Answer 1

Answer is 56

Step-by-step explanation:

perimeter of shaded region =circumference of semicircle + perimeter of rectangle - length of rectangle

2×22/7 ×14/2+ 2×10+14

22+20+14

56

Answer 2

Answer:

70

Step-by-step explanation:

perimeter of figure= perimeter of rectangle+perimeter of semicircle

perimeter of rectangle=2(l+b)

=2(14+10)

=2(24)

=48

perimeter of semicircle

=πr

=22/7*14/2

=22/7*7

=22

perimeter of figure

= 48+22

=70