Question

Quadrilateral CDEF is inscribed in circle A, so m arc CDE+ m arc CFE= 360°. ∠CFE and ∠CDE are _________________, which means that their measures are _________________. So, m arc CDE= 2 ⋅ m∠CFE and arc CFE = 2 ⋅ m∠CDE. Using the substitution property of equality, 2 ⋅ m∠CFE + 2 ⋅ m∠CDE = 360°. Using the division property of equality, divide both sides of the equation by 2, resulting in m∠CFE + m∠CDE = 180°. Therefore, ∠CFE and ∠CDE are supplementary.

central angles; equal to the measure of their intercepted arcs
inscribed angles; equal to the measure of their intercepted arcs
central angles; one half the measure of their intercepted arcs
inscribed angles; one half the measure of their intercepted arcs

Answer 1

Can you Eliminate any?

Answer 2

the central angle ones i think

Answer 3

@imagine help plz

Answer 4

No, not the central angles ones, those you want to keep.

Answer 5

oh, i thought it was the inscribed angles we needed to keep

Answer 6

No, It's the central ones.

Answer 7

Do you think it's equal or Half?

Answer 8

wait, is it C?

Answer 9

Yes.

Answer 10

Okay thank you!

Answer 11

:)