Question

Answer for this with explanation please

Answer 1

Answer:

30cm

Step-by-step explanation:

Radius of Semicircle=

$10 \div 2$

Perimeter of the semicircle=

$\frac{1}{2} \times2 \pi \: r$

=

$\frac{22}{7} \times 5$

=15.71

perimeter of triangle =6+8

=14

(No need to add 10 as it is not a part of the perimeter of the composite shape)

Total perimeter= 15.71+14

=29.71

Which is approximately 30cm