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nikdorinn [45]
2 years ago
6

What is the value of x in the figure below?

Mathematics
1 answer:
cluponka [151]2 years ago
8 0

Answer:

choice f

Step-by-step explanation:

take ∆ abc

ab^2 = ac^2 + ab^2

400 = 225 + ab^2

ab =√ 175

∆aDB

bd = 20-x

ad^2 = 175 -(20-x)^2

∆acd

225 = x^2 + 175 - 400+ 40x - x^2

225 = -225 + 40x

450 = 40x

x = 45/4

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motikmotik

Given that, a sphere has a surface area of about 999 square millimeters.

Formula to find the surface area of sphere is,

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Given S= 999 square millimeters.

So, we can write:

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Hope this helps you!

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