The sum of the measures of angles in all quadrangles is 360 °. Therefore:

U need to find the equation of the line....and once u do that, sub in 0 for x and solve for y
Answer:
The line is y=1x+8
Step-by-step explanation:
We can use point-slope form of a line to make an equation. Point-slope form is as follows:
y-y₁=m(x-x₁)
**The variables y₁ and x₁ are where we will plug in our given coordinates and the variable m is your slope.
1. Plug in the given info:
y-10=1(x-2)
2. Distribute the 1:
y-10=1x-2
3. Add 10 to both sides:
y=1x+8
Okay, so as you may know the inside angles of a triangle always add up to 180! so you must first find x, so that means add up all equations to find x. your answer is 41
Area of a circle with diameter 14.
That means the radius is r=7 and the area is of course πr²
Answer: 49π