AB and AD are tangents of the circle with the center at C. The measure of BDC = 45o, and the circle has a diameter of 4. Which i

Question

vazorg [7]

3 years ago

14

AB and AD are tangents of the circle with the center at C. The measure of BDC = 45o, and the circle has a diameter of 4. Which i

s the length of AB?
help needed!!

Mathematics

1 answer:

34kurt · Answer 1 · 2022-04-04T23:54:40+03:00

34kurt3 years ago

4 0

Hello,

ABCD is a diamond.
Let's D' the intersection of the circle and DC.
m∠BCD'=2*m∠BDC=2*45=90°
m∠BCD=90°
The diagonals of ABCD are perpendicular==>ABCD is a diamond and AB=BC=CD=DA=2