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DO NOW
DO NOW
Let's get going on the work from yesterday! If you need more, there is more!
DO NOW
DO NOW
Think this through:
What must be true about the blue angles? What about the red ones? Why?
LEARNING TARGET
LEARNING TARGET
I can use angle pairs to identify geometric relationships.
I can use angle pairs to identify geometric relationships.
I DO
I DO
What are angle pairs?
Special angle pairs can help you identify geometric relationships and find the measure of unknown angles. There are four types of angle pairs:
Important Side Note: What are congruent angles? What does congruent mean?
What are acute angles? What are obtuse angles? What are right angles?
Let's do some examples ...
Let's identify the angle pairs in these situations.
If angles A and B are complementary, and Angle A is 20°, what is the measure of Angle B?
If angles C and D are supplementary and Angle A is 50°, what is the measure of Angle D?
3. What is the relationship between y and the 76° angle? What is the measure of y?
What is the relationship between y and x? What is the measure of x?
WE DO
WE DO
Complete the true/false section of your 3 work with your neighbor, then you can complete the rest on your own.
Complete the true/false section of your 3 work with your neighbor, then you can complete the rest on your own.
YOU DO
YOU DO
Complete this worksheet for a 4, and do the backside for a 5! (answers)
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