The surface area of the sphere is the space accumulated by the curved surface of the sphere. In this particukar problem, we are asked to compute for the surface area of the table tennis ball which is a resemblance of a sphere. The formula for computing the surface area = 4πr². π has an equivalent value of 3.14. The radius is half of the diameter.
Answer:
5,024mm²
Solutions:
Asked: The surface area of the table tennis ball.
Given: d = 40 mm
Operation: division, multiplication
Number Sentence: d = 2r, S.A. = 4πr²
Solutions:
Find r.
d = 2r
40mm = 2r
=
20mm = r
Find the surface area.
S.A. = 4πr²
S.A. = (4)(3.14)(20mm)²
S.A. = (4)(3.14)(400mm²)
S.A. = (12.56)(400mm²)
S.A. = 5,024mm²
Answer:
Therefore, the surface area of the table tennis ball with diameter 40mm is 5,024mm².
Things to Remember:
Surface Area refers to the overall space covered by the three - dimensional shape.
Three - dimensional shapes include: cone, cube, cylinder, prism, pyramid, and the sphere.
The surface area of a particular three - dimensional figure possess a unique formula containing the details and dimensions of the said three - dimensional figure.
The formula for finding the surface area of a cube is given by: 6s² where s is the measurement of the side of the connected square which is the lateral face of the cube. It is multiplied by 6 since the cube has 6 lateral faces.
The formula for finding the surface area of a rectangular pyramid is bh + lw. It is the sum of the area of the lateral faces which are triangles and the area of the base which is the rectangle.
All the units of measurement should be squared since we are referring to area.
Answers & Comments
Verified answer
Surface Area of the Sphere
The surface area of the sphere is the space accumulated by the curved surface of the sphere. In this particukar problem, we are asked to compute for the surface area of the table tennis ball which is a resemblance of a sphere. The formula for computing the surface area = 4πr². π has an equivalent value of 3.14. The radius is half of the diameter.
Answer:
5,024mm²
Solutions:
Asked: The surface area of the table tennis ball.
Given: d = 40 mm
Operation: division, multiplication
Number Sentence: d = 2r, S.A. = 4πr²
Solutions:
Find r.
d = 2r
40mm = 2r
20mm = r
Find the surface area.
S.A. = 4πr²
S.A. = (4)(3.14)(20mm)²
S.A. = (4)(3.14)(400mm²)
S.A. = (12.56)(400mm²)
S.A. = 5,024mm²
Answer:
Therefore, the surface area of the table tennis ball with diameter 40mm is 5,024mm².
Things to Remember:
What is surface area: brainly.ph/question/12720424
How do you compute for the surface area of a sphere: brainly.ph/question/360309
#BrainlyEveryday