Answer:
180°
Step-by-step explanation:
A "3-gon" is a triangle. The sum of the measures of its interior angles is 180°.
_____
You can make use of the formula for the sum of interior angles for an n-gon:
angle sum = 180°·(n -2) = 180°·(3 -2) = 180°
or, you can translate the exterior angles so they all have the same vertex and realize they sum to 360°. Then if the interior angles are A, B, C, you have ...
(180 -A) +(180 -B) +(180 -C) = 360
3·180 -(A +B +C) = 2·180 . . . . . collect terms
180 = A + B + C . . . . . . . . . . . . subtract 2·180 and rearrange
I prefer to use a midpoint formula that deals with both coordinates at once. For points A and B, their midpoint (M) is
... M = (A + B)/2
We can solve this for B by multiplying by 2 and subtracing A.
... 2M = A + B
... 2M - A = B
For your midpoint M(0, -10) and your endpoint A(-4, -5), the other endpoint will be
... B = 2(0, -10) - (-4, -5) = (2·0 -(-4), 2·(-10) -(-5))
... = (4, -15)
Consider that the slope-intercept form of the straight line with slope (m) and y-intercept (c) is given by,
a.
Modify the given equation as,
Thus, the equation in slope-intercept form can be written as,
b.
Modify the given equation as,
Thus, the equation in slope-intercept form can be written as,
c.
Modify the given equation as,
Thus, the equation in slope-intercept form can be written as,
Answer:
Step-by-step explanation: answer is 480 cubic feet. Just do 8 x 6 x 10.
Answer:
<h2> B. 31,400 mm2</h2>
Step-by-step explanation:
We know that the bull's eye target has a diameter of 20 centimeters, which equals 200 milimeters.
So, we find the area
Therefore, the right answer is B.