Answer:
Explanation:
1) m∠1 = m∠2
4x - 1 = 2x + 7
2x = 8
x = 8/2 = 4
2) m∠1 = (m∠YWX) / 2 = 62/2 = 31
3) AB is 4 squares long. Start at A, go over 2 squares, then draw a line straight up to point C.
4) Altitude is the height of a triangle. Find the midpoint of the bottom line, then draw a line straight up to the vertex (top of the triangle). Your drawn line should form a right angle with the bottom line.