Question

Is this correct? formula is displayed on image:

Answer 1

x = 15

Explanation:

The angle between a tangent and a radius at the point of contact F is 90°

Then Δ GFE is a right triangle

Using Pythagoras identity in the right triangle

x² + 8² = 17²

x² + 64 = 289 ( subtract 64 from both sides )

x² = 225 ( take the square root of both sides )

x =
`√(225)` = 15

Answer 2

no it should bee

`\tan( \alpha ) = (15)/(8)`