Geometry Warm Ups

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# Geometry Warm Ups - PowerPoint PPT Presentation

Geometry Warm Ups. Week of February 4-8. DFA Review. For the next two weeks, our Warm Ups will be focused on preparing you for the DFA. Please make sure you understand these concepts. There will be a quiz on Friday. Monday #1. What is the measure of ?.

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### Geometry Warm Ups

Week of February 4-8

DFA Review
• For the next two weeks, our Warm Ups will be focused on preparing you for the DFA.
• Please make sure you understand these concepts.
• There will be a quiz on Friday.
Monday #1
• What is the measure of ?

With an isosceles triangle, the base angles are congruent. The sum of the angles inside is 180, so this should be easy to figure out…the answer is 52.

Monday #2
• What is the measure of ?

A linear pair adds to 180 so the missing angle is 70 degrees.

Monday #3
• What is the measure of ?

Angle BDA is the same as A because the triangle is isosceles. Angle ABD will be 120 and that makes angle CBD 60 degrees. Angle C would also be 60 because that triangle is also isosceles (look at it upside down), so the angle the question asks for is also 60 degrees.

Tuesday #1
• What is the longest side of ΔABC?

The missing angle is 63 degrees. The longest side of a triangle is opposite the largest angle so, the longest side here is segment AB.

Tuesday #2
• What is the longest side of ΔABC?

The missing angle near B is 50 degrees, so angle A is now 63. Just like the last one, the longest side is opposite the largest angle inside the triangle so the answer is segment AB.

Tuesday #3
• What is the longest side of ΔWXZ?

Find all of the missing angles first, then you can figure out the longest side. You should get segment WX.

Wednesday/Thursday #1
• What is the measure of ?
Wednesday/Thursday #2
• Find the measures of the exterior angles of ΔABC.
Wednesday/Thursday #3
• Find all the exterior angles of this triangle.
Wednesday/Thursday #4
• What is the measure of ?
Wednesday/Thursday #5
• What is the measure of ?
Friday – Quiz #1
• What is the measure of ?
Friday – Quiz #2
• What is the longest side of ΔABC?
Friday – Quiz #3
• Find all the exterior angles of this triangle.
Friday – Quiz #4
• What is the measure of ?