Answer:
57.1
Step-by-step explanation:
Perimeter Formula: P = 2l + 2w
Simply plug in what we know and solve:
269.4 = 2l + 2(77.6)
269.4 = 2l + 155.2
114.2 = 2l
l = 57.1
Answer:
Sadly, there is no question :(
Step-by-step explanation:
Repost it again with the question or image this time.
For the first one it's 90.5, I know cause I just took the test and it's right. The second one I'm not sure..
Answer:
Step-by-step explanation:
Given that angle A is in IV quadrant
So A/2 would be in II quadrant.
sin A = -1/3
cos A = 
(cos A is positive since in IV quadrant)
Using this we can find cos A/2

Answer:
A and B are the answers on Edge.
Step-by-step explanation: