Answer:
Denote O as center of circle, draw OA, OC.
As property of tangent line from outside of circle (angle OAD = angle OCD = 90 deg):
=> AOC + D = 180
Moreover, angle AOC = 2 x angle B = 2 x 65 = 130
=> D = 180 - 130 = 50 deg
Hope this helps!
:)
5+7 = 12
60/12 = 5
5 x 5 = 25
5 x 7 = 35
<span>60 in the ratio of 5:7 = 25:35
hope it helps</span>
Answer:
the third one/second one
Step-by-step explanation:
So the groups of angles that make a line (like 130 and i or p a and t) should equal 180. however, the triangles should also equal 180. so in this case for the top row, we know that 130+j=180. since 180-130=50 (i did the inverse of addition, subtraction), j=50. now let’s say for that triangle that your top two angle measures were the 50 we just found and the 70 you have written just as an assumption but i have no clue what you were actually given. since triangles angles must equal 180, 50+70+that angle =180. 50+70=120, so if we do the inverse of 180-120=60, we find out that the bottom angle is 60 degrees.
Answer with Step-by-step explanation:
We are given that
We have to find the fourth roots of given complex number.
By using the formula
Angle of rotation=
Therefore, the four roots of given complex number are
