Please help me with this question!!! I am struggling...

Question

asked Jun 21, 2021 155k views

1 Answer

Basile Perrenoud · Answer 1 · 2021-06-25T04:26:06+0000

Answer:

It decreases from 45° to 40°

Explanation:

The secant angle GBJ is half the difference of the measure of its intercepted arcs, that is

∠ B =
(1)/(2) (CDF - GHJ) =
(1)/(2) (130 - 40)° =
(1)/(2) × 90° = 45°

If arc GHJ is now 50°, then

∠ B =
(1)/(2) (130 - 50)° =
(1)/(2) × 80° = 40°

That is ∠ B decreases from 45° to 40°