Question

perimeter of a semi circle of radius 1.4cm is ​

Answer 1

Answer:

$46.8$

Step-by-step explanation:

$Perimeter of the semicircle \: is \: obtained using the formula : r(\pi + 2)$

$Radius (r) \: = \: 1.4 \: cm$

$So, perimeter =14(π+2)..... where \: </p><p>π= \frac{22}{7}$

$=2(22+1.4)=44+2.8=46.8 \: cm$

$Hence, the \: answer \: is \: 46.8 \: cm.$