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Earn +20 ptsQ: How do you get the area when the radius is shown?
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What happens to the area of a circle when the radius is doubled tripled?
The area increases as the square of the radius (or diameter). So if you double the radius you * 4 (quadruple) the area. Treble the radius, you *9 the area.
How do you find the diametre if you have the area?
Area = (pi) x (Radius)2 (Radius)2 = Area/pi Radius = sqrt(Area/pi) Diameter = 2 x radius = 2 x sqrt(Area/pi)
Formula for finding volume and area of sphere?
Volume = 4/3 * pi * radius * radius * radius Surface Area = 4 * pi * radius * radius
Can you give us a example program of to read the radius of a circle and to evaluate its area in turbo C?
include<stdio.h> #include<conio.h> void main() { int area,radius; clrscr(); printf("enter the radius"); scanf("%d",&radius); area=3.14*radius*radius; printf("the ans is ",area); printf("the radius is ",radius) getch(); }
If the radius of a circle decreased would the area decrease?
Yes. The area is proportional to the square of the radius. If the radius becomes smaller, so does the area.
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