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Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Pairs of Angles Example 1:Identify Angles Example 2:Identify Angles Example 3:Find a Missing.

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Presentation on theme: "Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Pairs of Angles Example 1:Identify Angles Example 2:Identify Angles Example 3:Find a Missing."— Presentation transcript:

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2 Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Pairs of Angles Example 1:Identify Angles Example 2:Identify Angles Example 3:Find a Missing Angle Measure Five-Minute Check

3 Main Idea/Vocabulary Identify complementary and supplementary angles and find missing angle measures. complementary angles supplementary angles

4 NGSSS MA.8.G.2.2 Classify and determine the measure of angles, including angles created when parallel lines are cut by transversals.

5 Key Concept

6 Example 1 Identify Angles Identify the pair of angles as complementary, supplementary, or neither. Answer: Since 128° + 52° = 180°, the angles are supplementary.

7 Example 1 CYP A.complementary B.supplementary C.neither Identify the pair of angles as complementary, supplementary, or neither.

8 Example 2 Identify the pair of angles as complementary, supplementary, or neither. Identify Angles  x and  y form a right angle. Answer: So, the angles are complementary.

9 Example 2 CYP A.complementary B.supplementary C.neither Identify the pair of angles as complementary, supplementary, or neither.

10 Example 3 Find a Missing Angle Measure ALGEBRA Find the value of x. Since the two angles form a straight angle, they are supplementary.

11 Example 3 56 + x= 180 Write the equation. – 56 – 56 Subtract 56 from each side. x= 124 Find a Missing Angle Measure Answer:So, the value of x is 124.

12 Example 3 CYP A.30 B.50 C.60 D.80 ALGEBRA Find the value of x.

13 A.complementary B.supplementary C.neither Identify the pair of angles as complementary, supplementary, or neither. Five Minute Check 1

14 A.complementary B.supplementary C.neither Identify the pair of angles as complementary, supplementary, or neither. Five Minute Check 2

15 A.complementary B.supplementary C.neither Identify the pair of angles as complementary, supplementary, or neither. Five Minute Check 3

16 A.55 B.65 C.145 D.180 Find the value of x. Five Minute Check 4

17 A.true B.false Tell whether the following statement is true or false. Angles are complementary if the sum of their measures is 180°. Five Minute Check 5

18 A.33° B.43° C.57° D.123°  1 and  2 are complementary angles and m  1 = 57°. What is the measure of  2? Five Minute Check 6

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