The answer is A. Hope that helps
Rule is 7 can only be divisible by 1 and no other number
The sides of a real triangle satisfy the <em>triangle inequality</em>, which just says any two sides add up to more than the third. It's strictly more; if two sides add up to exactly the third that's called a <em>degenerate triangle</em>. It's not a real triangle because the vertices are three collinear points.
The triangle equality fails when the sum of the two smallest sides fails to exceed the the largest side.
A. 4+6=10, degenerate triangle, not a real triangle
B. 4+7>7, isosceles triangles are real, SELECT
C. 4+3<10, not a real triangle
D. 4+7=11, degenerate triangle again
Answer:
B. Yes, because the angles lie on the same side of the transversal and in corresponding positions.
We can use 3 facts:
So, to find our x and our y we can do:
So, now that we know our x and our y we can find our r.
You'll notice, though, that there were two solutions for 
, which means we have a positive and a negative for our x. So:
