Answer:
C
Step-by-step explanation:
Supplementary angles because their sum is 180 degrees
Answer:
(x-1)(x-2)
x=1, x=2
Step-by-step explanation:
Ah hah ! This is exactly what I was telling you about in the other answer.
A pair of angles that are formed by 2 lines and DON't share a side are called
"vertical angles", and a pair of vertical angles are always equal.
In this problem, the two angles on the sides facing each other are vertical angles, and that tells you that they're equal.
So you can immediately write <u> 4y - 8 = 79 + y </u>,
and then you can easily solve that and find the value of 'y' .
Answer:
E. x = 18.6.
Step-by-step explanation:
As it is a rhombus the diagonals bisect to 4 angles in the rhombus (which add up to 360).Therefore:
4(4x - 3) + 4x = 360
16x - 12 + 4x = 360
20x = 372
x = 372/20
= 18.6.
Answer:
The correct option is III: 4.5 cm.
Step-by-step explanation:
The area of a square is the following:
(1)
Where:
A: is the area
b: is the side of the square
We have that the area is 20 cm², hence by solving equation (1) for <em>b</em> we can find the side:

Therefore, the correct option is III: 4.5 cm.
I hope it helps you!