Question

Two parallel lines are crossed by a transversal.

What is the value of h?

h = 60
h = 80
h = 100
h = 120

Answer 1

Answer:Jenna’s method: Mia’s method:

5(30 + 4) 5(30 + 4)

(5)(30) + (5)(4) 5(34) = 170

150 + 20 = 170

Explain why both Jenna and Mia arrived at the same answer and the advantage of one method over the other.

Explanation:

Answer 2

h = 60

Explanation:

Parallel lines cut by transversals have opposite interior angles that are equivalent and adjacent angles add up to 180 degrees (i.e. supplemental angles).

120 + h = 180

h = 60.