Question

What is the value of a + b?

125
110
145
135
see attachment !

Answer 1

a must be 45 degrees I think..

Angle a should be half of 90 degrees..

Answer 2

well a is 45 as it is half of 90

Answer 3

yea but whats with the 110? Its like in the middle of nowhere

Answer 4

it a arc

Answer 5

For that, line should go from center to the tangent, I think..

Answer 6

oh yea, your right sorry(why u say you think) lol

Answer 7

There is role of 110 in finding b..

Answer 8

Because I think too much.. :)

Answer 9

im lost can someone do it in steps please

Answer 10

First let us do in steps for that.. :P

Answer 11

huh?

Answer 12

Just kidding.. :)

Answer 13

@hobbs978 mind helping?

Answer 14

180-55= ??

Answer 15

Oh I think I got answer..

Answer 16

Can I use some internet help here??

Answer 17

http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm

Answer 18

See, 3rd property there...
Tangent Chord Angle..

Answer 19

So. extend your tangent there..

Answer 20

Firstly x angle should be half of 110 degrees according to 3rd property there..

Answer 21

a+b + x = 180 (straight line property)

Answer 22

a + b = 180 - x

a + b = 180 - 55

a + b = 125