<h3>Answer:</h3><h3>See below</h3>
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
- law of sine
- law of cosine
- PEMDAS
<h3>let's solve:</h3>
there are 3 ways to solve SAS triangle
- use The Law of Cosines to calculate the unknown side,
- then use The Law of Sines to find the smaller of the other two angles
- and then use the three angles add to 180° to find the last angle.
first figure out 
to do so we will use the formula of law of cosine of C angle

substitute the given values of a,b and 

simplify squares:

simplify addition:

square root both sides

simplify:
therefore

use law of sine to figure out angle A

therefore
(use calculater to simplify it)
therefore


Brooooooo what do u mean... my mind went atomic bomb
Answer:
d
Step-by-step explanation:
Just put it equal to 180.
2x+5+4x-11+90=180
6x+84=180
Answer:
28
Step-by-step explanation:
1/2 bh
1/2 x 14 x 4
7 x4
=28m
Lets x = radius
x^2 + 10^2 = (x+8)^2
x^2 + 100 = x^2 + 16x + 64
16x = 100 - 64
16x = 36
x = 2.25
answer
B. 2.25