Match the following items. Complete the proof for Theorem 3-13.

1. l|| m
Substitution
2. m∠1 = m∠2
Vertical angles are equal.
3. m∠1 = m∠3
Given
4. m∠2 = m∠3
If lines are ||, corresponding angles are equal.

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.