<u>Answer:</u>
Angle A = 39°
<u>Step-by-step explanation:</u>
We are given that there is a triangle ABC where a = 9, c = 5 and angle B = 120° and we are to find the measure of angle A.
But first we need to find the side b using the law of cosine:
Now finding angle A using law of cosine:
Therefore, the measure of angle A = 39°.
Answer:
Rectangle w=72
Step-by-step explanation:
Rectangle
Solve for
width
w
=
72
cm
l
Length
cm
P
Perimeter
cm
Answer:
0
Step-by-step explanation:
5-5=0
I hope this is correct and have a great day