JM. BA. WC. OP. Warm up. No, corresponding sides are not congruent, and we can’t tell if the angles are congruent. No, the measures are not the same. Yes, angle measures are the same and the rays go to infinity.
No, corresponding sides are not congruent, and we can’t tell if the angles are congruent.
No, the measures are not the same
Yes, angle measures are the same and the rays go to infinity
Yes, all corresponding sides are congruent and all corresponding angles are congruent.
Yes, all corresponding parts are congruent.
No, corresponding parts are not congruent.
L A J F M X P B
K E N W O C
Remember last time…
We learned that two polygons were congruent if EACH corresponding pair of angles were congruent AND each pair of corresponding sides were congruent.
Remember that you had to
LIST EACH PAIR?
Yikes! That could get very long and tedious (boring).
Today, you’re going to learn some shortcuts that apply to TRIANGLES ONLY.
These shortcuts, if used correctly, will help you prove triangle congruency.
Remember that congruency means EXACT size and shape… don’t confuse it with “similar”.
(just so you know, there are 2 abbreviations that are not used for congruence: AAA and SSA)
I need 3 volunteers to hand out white boards, markers and worksheets.
The worksheet is called ‘page 828’… we’ll do section 4.2 together.
Pg 220-222: 1-3, 8-19, 23-29