Answer:
Therefore,

Step-by-step explanation:
Given:
Consider In Right Angle Triangle ABC
∠B = 90°
∠C = ∠A = 45°
AB = y
BC = x = adjacent side
AC = 8 = hypotenuse
To Find:
x = ?
y = ?
Solution:
In Right Angle Triangle ABC by Cosine Identity we have

substituting the above given values we get


As The triangle is 45 - 45 - 90
It is an Isosceles Right triangle
..... Isosceles Triangle property

Therefore,

Answer:
x=10
y = -9
Step-by-step explanation:
-8x - 10y = 10
3x + 2y = 12
Multiply the second equation by 5
5(3x + 2y) = 12*5
15x+10y = 60
Add this to the first equation to eliminate y
-8x - 10y = 10
15x+10y = 60
-----------------------
7x + 0y = 70
Divide by 7
7x/7 = 70/7
x = 10
Now find y
3x+2y = 12
3(10) +2y = 12
30 +2y =12
Subtract 30 from each side
2y = 12-30
2y = -18
Divide by 2
2y/2=-18/2
y = -9
Answer:
1 / 4 = 3/12
Step-by-step explanation:
Use LCM for the denominator
The ratio is 1:2:3:4
1+2+3+4=10x
360/10
36*1
36*2
36*3
36*4
Are the angles