Question

Double check for me !!!!!!

secants BE and CF intersect at point D inside A.

What is the measure of 13 years ago

Answer 1

CDE will be 180° - 25° - 35° = 120° ?????????

Answer 2

@jim_thompson5910

Answer 3

you use the formula found on this page

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

You use formula #4 on that page


CDE = (1/2)*(BC + EF)

CDE = (1/2)*(50 + 70)

CDE = (1/2)*(120)

CDE = 60

Answer 4

it said it was wrong :(