A practical method is to place a wooden block on each side of the ball resting on a base (tabletop, etc). Remove the ball without distrubing the blocks. Draw a line where the bottom of the blocks rest on the base. Remove the blocks and measure the gap between the two lines. Half of the gap measurement will be the radius.
The radius of a baseball is 4 1/2 cm. (1.77 in.)
well cicumfrences formula is c=pi x radius squared so if u find the radius of a baseball multiply it by itself and the multiply it by pi and u got urself the circumference of a baseball
A major league baseball is 73 to 76 millimetres in diameter.
The circumference is 9.42 inches.
A soccer ball has a larger radius than a baseball, so it has more surface area.
Diameter = 2 x Radius Circumference = π x Diameter= π x (2 x Radius) 28.5 = π x 2R 28.5 / π = 2R 28.5/3.14159 = 2R = 9.0718 OR 9.1 Radius = 9.1/2 = 4.5 inches.
It means to multiply the radius by itself: radius x radius
IMPOSSIBLE circumference = 2*pi*radius if circumference = 2*radius: 2*radius=2*pi*radius 2*radius/(2*radius)=2*pi*radius/(2*radius) 1=pi pi= 1 therefore it is impossible to have a circumference that is twice that of the radius
No. Radius is half of the diameter.
(radius+radius) times pi
Let r be the radius of the (base)ball. The surface area of a sphere = 4 * pi * r ^2 Therefore, the surface area of an ideal (base)ball = 4 * 3.14159 * 1.475^2 [in^2] = 27.34 [in^2] Note that I don't like to use the term baseball, because a baseball is not an ideal sphere. A baseball has markings and asperities. A perfect sphere does not.
When you try to figure out an area of a circle, you square the radius, then multiply it by pi to get the area of a circle. A radius square is radius x radius, or radius squared.