Answer:
The two angles are alternate interior angles
Step-by-step explanation:
Here, we want to state the relationship between the two given angles
From the diagram, we can observe that these two angles are;
They are alternate interior angles
I want to say that shows a decreasing interval, since it is going downwards.
Answer:
20 gray squares
Step-by-step explanation:
Given
See attachment for squares
Required
Number of gray squares when white = 16
First, we calculate the equation that represents both squares.
<u>The white squares</u>
--- initial

-- difference between successive gray squares
So, the nth term is:




<u>The gray squares</u>
--- initial

-- difference between successive gray squares
So, the nth term is:




When the white squares is 16
--- Calculate n




To get the number of gray squares;
Substitute
in 

