3-1 Lines and Angles
Problem 1: Identifying Nonintersecting Lines and Planes In the figure, assume that lines and planes that appear to be parallel are parallel. Which segments are parallel to 𝐴𝐵 Which segments are parallel to 𝐶𝐷 What are two pairs of parallel planes What are two segments parallel to plane BCGF
In the figure, assume that lines and planes that appear to be parallel are parallel. Which segments are parallel to 𝐴𝐷 Explain why 𝐹𝐸 and 𝐶𝐷 are not skew What are two segments parallel to plane DCGH
Transversal: a line that intersects two or more coplanar lines at distinct points
Angles formed by Transversals
Angles formed by Transversals
Problem 2: Identifying an Angle Pair
What are three pairs of corresponding angles?
Problem 3: Classifying an Angle Pair The photo shows the Royal Ontario Museum in Toronto, Canada. What are angles 2 and 4?
The photo shows the Royal Ontario Museum in Toronto, Canada The photo shows the Royal Ontario Museum in Toronto, Canada. What are angles 1 and 3?