Question

who can help im lost

Answer 1

with?

Answer 2

no im lost...anyways ill try to solve and ill get bac to you soon :p

Answer 3

sorry thts the wrong one one sec

Answer 4

oh ok its fine

Answer 5

The easiest way is to draw a diameter (necessarily perpendicular to the tangent, and use the inscribed angle theorem.

Answer 6

hmmmmmmmm

Answer 7

omg this is only confusing me

Answer 8

You must be studying circles, chords, tangents, and secants and their associated theorems. What do you know about the inscribed angle theorem?

Answer 9

yep one sec ill get my notes

Answer 10

Theorem: If two chords intersect within a circle, each of the angles formed is equal in degrees to 1/2 the sum of the arcs intercepted by it and its vertical angle.

Answer 11

Does that help

Answer 12

@bibby I hate to bug you, but could u help if you have time

Answer 13

No, the measure of an inscribed angle is 1/2 the measure of its intercepted arc. I'm trying to avoid the complexities of the therem you stated.



The inscribed angle is FGH. Can you figure out its measure?

Answer 14

Not FGH, FCH

Answer 15

either 30 or 220

Answer 16

What is the intercepted arc of angle FCH?

Answer 17

10

Answer 18

@this..war..willend

Answer 19

Well
what's the measure of ACF, then?

Answer 20

80

Answer 21

Bingo!

Answer 22

90 ? whole thing

Answer 23

Yes, a right angle measures 90 degrees and it is formed by perpendicular lines.

Answer 24

i just put 80?

Answer 25

Well, the answer space already has the degree symbol on it, so 80 would be just right.