Answer:
44
Step-by-step explanation:
these triangles are similar, so the proportions of the sides will be the same. Since the small triangle's proportions are 4:4, the bigger one's will be 44:44
Common ratio = 22/-11 = -2 also -76 / 88 = -2 confirms it.
B/ a0 = -11 / -2 = 5.5 and a1 = 88 / -2 = -44
It is 180 degrees- hope this helps!
All of the equations are the same, I'm not sure
1. For y, I think that refers to the first picture attached. As you can see, each side of the triangle have the same short line drawn across it. It means that they are equal in length. That means the triangle is equilateral, which means each interior angle is 60°. Thus,
60 = 5y + 10
5y = 60 - 10
5y = 50
y = 50/5 =<em> 10</em>
2. As you can see in the second picture attached, Angles B and C are equal. That also means that their respective opposite sides are equal. So,
8x - 4 = 5x + 11
8x - 5x = 11 + 4
3x = 15
x = 15/3 = 5
Consequently,
BC = 4x - 2
BC = 4(5) - 2 = <em>18</em>
