We'll use the Law of Cosines
We'll call
side a = length 5
side b = length 8
side c = length 10
and their corresponding angles as A, B and C
"C" would be the largest angle
cos (C) = (a^2 + b^2 - c^2) / 2 * a * b
cos (C) = (5^2 + 8^2 - 10^2) / 2 * 5 * 8
cos (C) = 25 + 64 -100 / 80
cos (C) = -11 / 80
cos (C) =
<span>
<span>
<span>
-0.1375
</span>
</span>
</span>
arc cosine (
<span>
<span>
<span>
-0.1375
</span>
</span>
</span>
) = 97.903 Degrees
The largest angle is 97.903 Degrees
X is:
tan50 = 28 / x
1.19 = 28 / x
1.19 / 28 = x
x = 0.04
But Im not sure
About the area of triangle
You can use the both formula
Answer:
A to D
Step-by-step explanation:
Atod isbwhaiJsowjbhu10=x
If simplified the new equation is 9k-45
Answer:
$300 income$250 + $100 = $350 expenses$300 - $350 = a loss of $50
Step-by-step explanation: