moon approximately a sphere of radius 1.737×10power8cm .what is its surface area in square kilometer?
Answers
Given data : The Moon approximately a sphere of radius 1.737 * 10^( 8 ) cm.
To find : The surface area of the Moon in square kilometer ?
Solution : Here, we need to convert radius of sphere ( Moon ) in kilometer.
Now,
→ 1.737 * 10^( 8 ) cm
= { 1.737 * 10^( 8 ) } / { 10^( 5 ) } km
→ 1.737 * 10^( 8 ) cm
= 1.737 * 10^( 8 ) * 10^( - 5 ) km
→ 1.737 * 10^( 8 ) cm
= 1.737 * 10³ km
→ 1.737 * 10^( 8 ) cm
= 1737 km
Now, by formula of surface area of sphere,
→ surface area of sphere ( Moon )
= 4 * π * r²
{ where,
- r = radius
- π = 22/7 }
→ surface area of sphere ( Moon )
= 4 * 22/7 * ( 1737 )²
→ surface area of sphere ( Moon )
= 4 * 22/7 * 3017169
→ surface area of sphere ( Moon )
= 4 * 22 * 431024.1429
→ surface area of sphere ( Moon )
= 4 * 9482531.143
→ surface area of sphere ( Moon )
= 37930124.57 km²
→ surface area of sphere ( Moon )
= 37.93012457 * 10^( 6 ) km²
Answer : Hence, surface area of the Moon is 37.93012457 * 10^( 6 ) km².
Learn more :
18. The distance of the moon from the earth is 3.8 x 105 km. Calculate the speed of the moon revolving around the earth....
https://brainly.in/question/26966999
A person pushes a block of mass 0.25kg along a horizontal table with a force of magnitude 5N for a distance of 0.5m. The...
https://brainly.in/question/29782408