Question

please anyone there help me with this question​

Answer 1

Answer:

39.5cm (approx.)

Step-by-step explanation:

r=6/2cm

l=12cm

b=6cm

perimeter = 2(l+b)-b+(2πr)/2

=2(12+6)-6+(2(22/7)3)/2

=30+66/7

=276/7

=39.42cm

Answer 2

Answer:

$perimeter. \: of \: rectangle \: = 2(l + b) \\ = 2(12 + 6) \\ = 2(18) \\ = 36cm \\ now \: perimeter \: of \: semicircle \\ = 2\pi \: r \div 2 \\ = \pi \: r \\ so \: perimeter \: of \: figure \: \\ = 36 + \pi \: r \: cm.$