Length of Tangent Circle Pythagorean

In the diagram below, EF and EG are tangent to circle with centre C. What is the value of x?

• -1

• -4

• 1

• 4

Determine if line AB is tangent to circle P.

• Yes, because the Pythagorean Theorem doesn't work

• No, because the Pythagorean Theorem doesn't work

• Yes, because the Pythagorean Theorem works

• No, because the Pythagorean Theorem works

Determine if line XY is tangent to circle Z. Notice that 8.5 is the radius.

• No, because the Pythagorean Theorem doesn't work

• Yes, because the Pythagorean Theorem doesn't work

• No, because the Pythagorean Theorem works

• Yes, because the Pythagorean Theorem works

Given that segments XY and XW are both tangent to circle Z, find the value of x.

• 9

• x = 9

• x = 21.4

• x = 34

Given that segments CD and ED are both tangent to circle F, determine the value of x.

• x = 3

• x = 23

• x = 12

• x = 10

In the diagram, AC is tangent to circle B, find the length of CB.

• 6

• 7

• 8

• 9

Find the length of LK

• 24

• 20.25

• 17.5

• 12.32

Which of the following is true about two tangents drawn from an external point to a circle?

• They are always parallel

• They are always equal in length

• They are always perpendicular

• They are always unequal in length