Parallel Lines Answers

1. a. f and b OR a and d
b. d
c. f and d OR a and b
d. a
e. f

 

2a.

a = 75° (Adj. ∠ s on st. line)

b = 105° (corr. ∠ s on lines)

c = 75° (alt. ∠ s on  lines)

2b.

d = 35° (Vert. opp. ∠ s )

e = 145° (coint. ∠ s on  lines)

f = 145° (Vert. opp. ∠ s )

2c.

g = 29° (alt. ∠ s on  lines)

h = 97° (∠ sum of Δ )

i = 151° (Adj. ∠ s on st. line)

2d.

j = 66° (coint. ∠ s on  lines)

k = 29° (Vert. opp. ∠ s )

l = 29° (alt. ∠ s on  lines)

2e.

m = 114° (corr. ∠ s on lines)

n = 66° (coint. ∠ s on  lines)

p = 66° (Vert. opp. ∠ s )

 

2f.

r = 146° (Adj. ∠ s on st. line)

s = 125° (Adj. ∠ s on st. line)

q = 34 + 55 (alt. ∠ s on  lines)

= 89°