Diameter.
Radius time 2 equals the diameter.
9. Circumference equals 2 times Pi times the radius. C=2(pi)r. "r" for radius. So if your circumference is 18 times pi, then you do 18 divided by 2, which gives you a radius of 9.
NO!!!! C = 2 pi r C = pi d In words ; Circumference equals two times 'pi' times radius or , circumference equals 'pi' times diameter. NB The diameter is twice the radius. Also A = pi r^(2) In words, Area equals 'pi' times the radius squared. Read learn and comit to memory these two circle equations.
2 times pi times the radius squared plus 2 times pi times the radius times the height equals surface area of a cylinder :]
The circumference of a circle equals 2 times pi times the radius, in this case, about 31.42 inches.
Radius time 2 equals the diameter.
Circumference equals the diameter times pi. The diameter is 2 times radius. Radius equals Circumference divided by pi then divided by 2.
Yes ... The Radius Times 2 Equals The Diameter
9. Circumference equals 2 times Pi times the radius. C=2(pi)r. "r" for radius. So if your circumference is 18 times pi, then you do 18 divided by 2, which gives you a radius of 9.
NO!!!! C = 2 pi r C = pi d In words ; Circumference equals two times 'pi' times radius or , circumference equals 'pi' times diameter. NB The diameter is twice the radius. Also A = pi r^(2) In words, Area equals 'pi' times the radius squared. Read learn and comit to memory these two circle equations.
2 times pi times the radius squared plus 2 times pi times the radius times the height equals surface area of a cylinder :]
*=multiplication symbol /=division symbol r*(r*ㅠ)=r2 ......... radius*(radius*pi)=radius2 ........... radius times the radius times pi equals radius squared HINT HINT HINT an easier way to put this is .......... d*ㅠ/2=n ............. diameter*ㅠ/2=answer .......... diameter times pi divided by two equals the answer
X2 or 2 times x?
The circumference of a circle equals 2 times pi times the radius, in this case, about 31.42 inches.
The radius of a circle with diameter or 8 inches is 4 inches. The diameter equals 2 times the radius or d=2*r. --> 8 in = 2*r so, r = 4 in
The diameter of a circle is twice the radius. Therefore, if the radius is 4.25 cm, the diameter can be calculated as (2 \times 4.25) cm, which equals 8.5 cm.
Area equals pi times the radius squared.