Question

the semi perimeter of a triangle whose sides are 29cm amd 20cm​

Answer 1

Answer:

whole identify the part of speech

Answer 2

$\huge \mathcal \blue{=>}\pink{Aη} \red{s} \blue{we} \green{r✌}$

Consider  a=29 cm , b = 20 cm and c = 21 cm

We know that 

S = (a+b+c)/2 

Substituting the values 

 (29+20+21)/2

 = 70/2

= 35 cm