how do you find the value of x to find the measurement of the angle?
DESCRIPTION
How do you find the value of x to find the measurement of the angle?. (2x - 10) 0. (x + 20) 0. In this lesson you will learn how to find the measurements of angles created when parallel lines are cut by a transversal by using alternate interior angles and alternate exterior angles. t. - PowerPoint PPT PresentationTRANSCRIPT
How do you find the value of x to find the measurement of the angle?
(2x - 10)0(x + 20)0
In this lesson you will learn how to find the measurements of angles created when parallel lines are cut by a transversal
by using alternate interior angles and alternate exterior
angles.
Let’s ReviewLet’s Review
Vertical Angles
43
21
6587
t
p
q
Adjacent Angles
Corresponding Angles
Let’s ReviewA Common Mistaket
p
q
1 24
5 67 8
3Interior Angles
Exterior Angles
Exterior Angles
Let’s ReviewCore Lessont
p
q
1 24
5 67 8
3
Alternate Interior Angles
Let’s ReviewCore Lesson
(2x - 10)0(x + 20)0
2x - 10 = x + 20
x - 10 = 20
x = 30
(30 + 20)0
500
(2(30) - 10)0
500
Let’s ReviewCore Lessont
p
q
1 24
5 67 8
3
Alternate Exterior Angles
Let’s ReviewCore Lesson
(4y + 30)0
(7y + 6)0
t
p
q
7y + 6 = 4y + 303y + 6 = 30
y = 83y = 24
7(8) + 6 56 + 6 620
4(8) + 30 32 + 6 620
In this lesson you have learned how to find the measurements of angles created when parallel lines are cut by a transversal
by using alternate interior angles and alternate exterior
angles.
Let’s ReviewGuided Practice
Find the value of x. (x-10)0
1040
t
p
q
Let’s ReviewExtension Activities Name all the alternate exterior angle pairs.
12
2
1
34 5
8 7
11
10
6
9Name all the alternate interior angle pairs.
Let’s ReviewExtension Activities
Find the measure of angles 1, 7 and 53
t
p
q
2
51010
67
1
8
Let’s ReviewExtension Activities
Find x and y.
(8y - 15)0
t
p
qx0
(y2) 0
Let’s ReviewQuick Quiz
Find the value of x and the measurement of each angle.
(12x + 7)0
t
p
q
(5x + 21) 0
Let’s ReviewQuick Quiz Find the value of x and the
measurement of each angle.
(3x + 15)0(5x - 5)0