# Perímetro de um semicírculo?

#### Responda:

"perimeter "=25.71"cm"

#### Explicação:

"the perimeter (P ) or circumference of a circle is"

color(red)(bar(ul(|color(white)(2/2)color(black)(P=2pir=pid)color(white)(2/2)|)))

"where r is the radius and d is the diameter"

"here it is a semicircle, that is half the circle"

rArr1/2xx2pir=pir" is the perimeter"

"here " d=10rArrr=10/2=5

"the perimeter of this semicircle includes the diameter"

rArrP=(pixx5)+10

color(white)(rArrP)=(3.142xx5)+10

color(white)(rArrP)=15.71+10=25.71" cm"