Question

Which of the following expressions correctly shows the relationship between the circumference and the area of a circle?(1 point) Responses C=2πr upper C equals 2 pi r Cd=π Start Fraction upper C over d End Fraction equals pi A=πr2 upper A equals pi r squared C2=4πA

Answer 1

If C=12π , what is the area of the circle? (1 point) Responses 36π 36 pi 144π 144 pi 24π 24 pi 12π

Answer 2

Which chart is correctly developed with the circumference and the area of a circle with a radius of 5 cm?(1 point) Responses Radius Circumference Area 5 cm 15.7 cm 19.63 cm2 Radius Circumference Area 5 cm 15.7 cm 19.63 cm squared Radius Circumference Area 5 cm 78.5 cm 31.4 cm2 Radius Circumference Area 5 cm 78.5 cm 31.4 cm squared Radius Circumference Area 5 cm 62.8 cm 314 cm2 Radius Circumference Area 5 cm 62.8 cm 314 cm squared Radius Circumference Area 5 cm 31.4 cm 78.5 cm2

Answer 3

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

Answer 4

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