Answer:
1) 25
2) 155
3) 25
4) 25
5) 110
6) 30.5
7) 74
Step-by-step explanation:
For #1, 180-155=25
For #2, m2 = m4
For #3 & 4, m1 is = to m5 & m7
For #5, 5x + 15 = 8x - 42
0 + 15 = 3x - 42
57 = 3x
19 = x 5 (19) + 15 = 8(19) - 42
95 + 15 = 110 152 - 42 = 110
For #6, 180 - 110 = 70
70 + (x + 4) + 3x = 180 *Every triangle in general should equal 180
74 + 4x = 180
4x = 106 (26.5) + 4 = 30.5 3(26.5) =
x = 26.5 70 + 30.5 + 79.5 = 180 79.5
For #7, 180 - 115 = 65
65 + (x + 4) + 2x = 180
69 + 3x = 180 (37) + 4 = 41 2(37)
0 + 3x = 111 74
x = 37 65 + 41 + 74 = 180
