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2 years ago

If the surface area of a sphere is 22176 sq.cm than find it's radius.

Mathematics

2 answers:

mr_godi [17]2 years ago

7 0

Answer:

3,531

Step-by-step explanation:

22,176 cm2 ÷ pie 3.14 = 7062

7062 ÷ 2 = 3531 radius

kondor19780726 [428]2 years ago

4 0

the surface area of a sphere: 4πr²

22176 = 4πr²

r² = 22176/4π

r = 42 cm

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In a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. If b = 77 centimeters and c = 85

MAVERICK [17]

Answer:

The perimeter of the triangle 198 cm.

Step-by-step explanation:

Given that,

In a right angled triangle, a and b are the length of the legs and c is length of the hypotenuse.

Pythagorean Theorem:

Sum of square of the legs is equal to square of hypotenuse.

∴a²+b²=c²

a= ?, b= 77 cm and c=85 cm

a²+77²=85²

⇒a²+5929=7225

⇒a²=7225-5929

⇒a²= 1296

⇒a = 36 cm

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3 years ago

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Answer:

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4 years ago

If the surface area of a sphere is 22176 sq.cm than find it's radius.​

If the surface area of a sphere is 22176 sq.cm than find it's radius.