Evaluate the area of circle, Mathematics

Assignment Help:

If the radius of a sphere is doubled, the surface area is

a. multiplied by 4.

b. multiplied by 2.

c. multiplied by 3.

d. multiplied by 8.

a. The formula for the surface area of a sphere is 4πr². If the radius is doubled, this implies that the radius is also doubled. The formula then becomes 4π(2r)². Solve this expression, 4π(4r²) equals 16πr². Compare 4πr² to 16πr²; 16πr² is 4 times greater than 4πr². Thus, the surface area is four times as great.

Related Discussions:- Evaluate the area of circle

Geometric applications to the cross product, Geometric Applications to the ...

Geometric Applications to the Cross Product There are a so many geometric applications to the cross product also. Assume we have three vectors a → , b → and c → and we make

Real analysis, Let {An} be sequence of real numbers. Define a set S by: S={...

Let {An} be sequence of real numbers. Define a set S by: S={i ? N : for all j > i, ai

Rates of change and tangent lines in limits, Rates of Change and Tangent Li...

Rates of Change and Tangent Lines : In this section we will study two fairly important problems in the study of calculus. There are two cause for looking at these problems now.

Calculate the edges in an undirected graph, Calculate the edges in an undir...

Calculate the edges in an undirected graph along with two vertices of degree 7, four vertices of degree 5, and the remaining four vertices of degree are 6? Ans: Total degree of

Exponents , what is 5 squared 2

what is 5 squared 2

Explain adding rational expressions different denominators, Explain Adding ...

Explain Adding Rational Expressions with Different Denominators When you add or subtract fractions or rational expressions that have different denominators, you must first find

Bernoulli differential equations, In this case we are going to consider dif...

In this case we are going to consider differential equations in the form, y ′ + p ( x ) y = q ( x ) y n Here p(x) and q(x) are continuous functions in the

1 application of complex analysis in THERMODYNAMICS, Hi, this is EBADULLA ...

Hi, this is EBADULLA its about math assignment. 1 application of complex analysis used in thermodynamics. . what all uses are there in that... plz let mee know this answer.

Permutations and combinations, How many arrangements can be made from the l...

How many arrangements can be made from the letters of the word " VENUS " such that the order of the vowels remains the same?

Circle, prove that - there is one and only one circle passing through three...

prove that - there is one and only one circle passing through three non - collinear points

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages