We use the identity sin (A - B) = sin A cos B - cos B sin A
so the above = sin (11pi/12 - pi/6) = sin 3pi/4 = 1 / sqrt2 answer
Answer:
This quadrilateral is a SQUARE.
When we plot these points, we realize that they are equal distance apart.
So, when a quadrilateral has sides that are equal distance apart, that quadrilateral is a square.
Let me know if this helps!
Answer:
Step-by-step explanation:
The two angles must add to 180
(4x-2)+(3x+14)=180
7x+12=180
7x=168
x=24
