Which formula is used to find the area of a circle when given the radius?(1 point)
Responses
A=r
upper A equals r
A=r2
upper A equals r squared
A=2r
upper A equals 2 r
A=d2
A=r2
upper A equals r squared
Which formula is used to find the circumference of a circle when the radius is given?(1 point)
Responses
C=2d
upper C equals 2 d
C=r2
upper C equals r squared
C=r
upper C equals r
C=2r