Answer:
<h2><u><em>
x = 4</em></u></h2>
Step-by-step explanation:
that's an equilateral triangle, 3 equal side and 3 equal angles of 60°,
so 10x + 20 = 60
solve with an equation
10x + 20 = 60
10x = 60 - 20
10x = 40
x = 40 : 10
x = 4
--------------------------
check
10 * 4 + 20 =
60°
the answer is good
Answer: $14.4
Step-by-step explanation:
To calculate the tip, you need to multiply the bill times .2. So 72x .2 = 14.4
Answer:
7
Step-by-step explanation:
Add 1 to six and u get seven.
Answer:
x=145
Step-by-step explanation:
A circle have at max 360 degrees.




Answer:
(see below)
Step-by-step explanation:
First, to make it easier for yourself, "flip" the triangles so that they "match." To see what I'm talking about, refer to IMAGE.A.
Now that you can tell that the congruent side and angles are corresponding, you have to prove them congruent.
There is one side and two angles, so it's AAS or SAA.