C.35cm
Should be the right answer
Answer:
Cos b
Step-by-step explanation:
1/2[sin(a+b)+sin(a-b)]
1/2[sin a cos b +cos a sin b + sin A cos B - cos A sin B]
1/2[2sin a cos b]
sin a cos b
Answer:
Perpendicular bisector
Step-by-step explanation:
The construction is of a perpendicular bisector, because the line in bisected and the angle formed by the bisector is a right angle.
Answer:
y=4x-1 i think
Step-by-step explanation:
Answer:
x=135°
Step-by-step explanation:
45°- 180°=135x
