Question

If m AF = 110°, then m DB =

Answer 1

options 70,80 or 110

Answer 2

anybody help me?

Answer 3

you want the measure of arc DB ???

Answer 4

what do you think it is?

Answer 5

hello?

Answer 6

yes

Answer 7

no idea

Answer 8

Secant Interior Angle Theorem

What it says: The measure of a secant angle is equal to half the sum of the arcs it and its vertical angle intercept.

Answer 9

if you're not familiar wid that theorem, you can solve this using inscribed angle theorem as well

Answer 10

how?

Answer 11

for which reply how hmm :)

Answer 12

how to apply Secant Interior Angle Theorem

Answer 13

The measure of a secant angle is equal to half the sum of the arcs it and its vertical angle intercept.

90 = (m AF + m DB)/2

Answer 14

thanks a lot

Answer 15

np :) the other way without using this theorem is much interesting, you try that :)

Answer 16

sure

Answer 17

il give a hint however

Answer 18

you need to draw segment AD, and apply inscribed angle theorem

Answer 19

and triangle exterior angle theorem also

Answer 20

good luck :D