how do you find the angle measurements in the diagram below? 42 nd street 41 st street broadway (3x...
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Let’s Review Adjacent angles 1 2TRANSCRIPT
How do you find the angle measurements in the
diagram below?
42nd Street
41st Street
Broadway
(3x + 5)o
(10x – 7)o 47o
In this lesson you will learn how to find the measurements of angles when parallel lines are cut by a transversal by using vertical and adjacent
angles.
Let’s ReviewLet’s Review
Adjacent angles
1 2
Let’s ReviewLet’s Review
41
23
Vertical angles
Let’s ReviewLet’s ReviewSupplementary angles
1 2
1200 600
Let’s ReviewA Common Mistake
x y
z
Let’s ReviewCore Lesson
42nd Street
41st Street
Broadway
1 2
34
Let’s ReviewCore Lesson
42nd Street
41st Street
Broadway
(3x + 5)o
(10x – 7)o 47o
Let’s ReviewCore Lesson3x + 5 = 47
3x = 42x = 14
10x – 7 = 10(14) – 7 =
140 – 7133
42nd Street
41st Street
Broadway
(3x + 5)o
(10x – 7)o 47o
Let’s ReviewCore Lesson
42nd Street
41st Street
Broadway
47o
133o 47o
In this lesson you have learned how to find the measure of
angles that are created when parallel lines are cut by a
transversal by using vertical and adjacent angles.
Let’s ReviewGuided Practice
1
(7x - 15)0
(3x + 25)0
You are building a bench for a picnic table. The top of the bench will be parallel to the ground.
Find the measure of angle 1.
Let’s ReviewExtension Activities
Find the measurements of angles a, b and c. 1150
a b
c
Let’s ReviewExtension ActivitiesFind the value of x in the diagram below.
1250
(x + 15)0
Let’s ReviewExtension Activities
Find the measurements of angles m and n.
1480
nm 400
Let’s ReviewQuick QuizWhat are the measurements of angle 1 and 2?
1 2
820
Let’s ReviewQuick QuizWhat are the measurements of angle x and y?
y670x