Answer:
43 cm^2
Step-by-step explanation:
tan 72/2 = 0.7265
0.7265 = 0.5(5)/h
h = 3.44
3.44 x 5 x 0.5 = 8.6
8.6 x 5 = 43 cm^2
The surface area of the table tennis ball will be around 1256.64 mm².
<h3>What is the sphere?</h3>
A sphere is a 3D geometrical object which has a radius and becomes a point that revolves around a fixed point called the center.
A sphere has surface area and volume based upon the radius of the sphere.
For example, if you have a sphere of radius r then its surface area will be 4πr² and volume will be (4/3)πr³.
The table tennis ball is the form of a sphere.
Given that,
The diameter of a table tennis ball is 20
Radius(r) = 20/2 = 10 mm
Surface area of an sphere = 4πr²
So,
Area = 4π(10)² = 1256.64 mm².
Hence "The surface area of the table tennis ball will be around 1256.64 mm²".
For more about a sphere,
brainly.com/question/9994313
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4 * side^2 = diagonal1 ^2 + diagonal2 ^2
4 * side^2 = 24^2 + 10^2
4 * side^2 = 576 + 100
4 * side^2 = 676
side^2 = 169
side = 13
So, the perimeter of this rhombus = 4 * 13 = 52 cm
Answer:
the answer is N=3
Step-by-step explanation:
hope this helps
Answer:
You will need about 13 tables.
Step-by-step explanation:
I divided the number of guests by 12 and got 12.5 however you can't have half of a table so I rounded up and got 13.