In a cyclic quadrilateral, the opposite angles add up to 180 degrees.
Opposite angle to angle A = Angle D.
A + D = 180
64 + D = 180
D = 180 - 64
D = 116°
Option E.
78- acute
144- obtuse
This is because anything less than 90 degrees is acute. Think of it as they are cute because they are tiny xD
=90 is right angel
And anything above 90 and below 360 is obtuse because it's fat xD
Yes, they all are 60 degrees, 60 degrees is a acute angle.
52 = 50
512= 500
500/50 = 10
The standard algorithm is the way or steps to find an answer.
