The three inside angles of a triangle equal 180 degrees.
All the 3 given angles together to equal 180 to solve for x, then calculate angle A.
x + (x-8) +(3x+13) = 180
Simplify the left side by combing like terms:
5x +5 = 180
Subtract 5 from each side:
5x = 175
Divide both sides by 5:
x = 175/5
x = 35
Now x is known, replace x in the equation for angle A:
3x+13 =
3(35) +13 =
105+13 = 118
Angle A = 118 degrees.
Answer:
-3-3x
Step-by-step explanation:
3-3(x-2)
<em>3</em>-3x+<em>6</em>
-<em>3</em>-3x
Answer:
C. 324°
Step-by-step explanation:
We are given that,
The spinner is rotated 180° counter-clockwise about the center and maps J to A.
Since there are 10 sections of the spinner.
So, the angle by each section = 
= 36°
That is, the angle which maps J to A clockwise is 36°
<h3>Then, the angle which maps J to A counter-clockwise = 360° - 36° = 324°</h3>
Thus, option C is correct.
Answer:
circle and rectangle
Step-by-step explanation:
we know that
A cross section that is perpendicular to the base of cylinder is a rectangle
A cross section that is parallel to the base of cylinder is a circle
A cross section that is angled to the base of cylinder is an oval
Answer:
40
Step-by-step explanation:
