Answer:
x=6
Step-by-step explanation:
Since the two lines are parallel, the angles are congruent to each other.
-4+14x=80
14x=84
x=6
Hope this helps!
He made his first mistake in step 5. He used the statement he was trying to prove as a reason.
hope that helps
Answer:
123 degrees
Step-by-step explanation:
Well, since we have a 4 sided figure, we know that the sum of the interior angles is 360 degrees.
(n-2)*180=(4-2)8180=360
Okay we are given 3 angles
120+43+74= 237
that means that x= 360-237
x=123 degrees
<h2>
Answer:</h2>
The ratio of the area of region R to the area of region S is:

<h2>
Step-by-step explanation:</h2>
The sides of R are in the ratio : 2:3
Let the length of R be: 2x
and the width of R be: 3x
i.e. The perimeter of R is given by:

( Since, the perimeter of a rectangle with length L and breadth or width B is given by:
)
Hence, we get:

i.e.

Also, let " s " denote the side of the square region.
We know that the perimeter of a square with side " s " is given by:

Now, it is given that:
The perimeters of square region S and rectangular region R are equal.
i.e.

Now, we know that the area of a square is given by:

and

Hence, we get:

and

i.e.

Hence,
Ratio of the area of region R to the area of region S is:

Answer:
19/12 or 1/7/12
Step-by-step explanation:
- find what is common in both denominators. in this case 12 can be divisible.
- 3x3/4x3 + 5x2/6x2
- 9/12+10/12=19/12=1/7/12