Finding the missing angle measure

Angles with algebra day one.notebook

December 01, 2016

Finding the missing angle measure

using algebra 320

Earlier this week our angles looked like this!

x0

What should we do now????

2x + 20

4x

Solve for the missing angle measures

Equation Solve for x

(5x

+

o 7)

48o

Find (5x + 7)

Angles with algebra day one.notebook

Solve for the missing angle measures Equation Solve for x

December 01, 2016

10 + 2x 3x 85

Find 2x + 10 and 3x - 85

To Solve for missing angle measures using algebra

Step 1: Figure out if the angles given are congrsuaemnet, supplementary (180) or complementary(90) Step 2: Set up an equation that relates the angles

If congruent set the measures equal

If complementary

add the measures & set them equal to

90

Step 3: Then solve for x Step 4: Find missing angle measures

If supplementary

add the measures & set them equal to

180

Angles with algebra day one.notebook

Find the missing angle measures Equation Solve for x

December 01, 2016

2x - 10 65 - x

2x - 10

65 - x

Solve for angle 1 and angle 2 Equation solve for x

1

(x + 40)o

2 (2x + 20)o

Angles with algebra day one.notebook Name___________________________ Date____________ Math 8 Angles: Using Algebra 1. Patty is making a quilt following the pattern shown below.

Show your work.

(2x + 50) (3x)

December 01, 2016

If all the horizontal lines are parallel, what is the value of x?

Answer____________________

___ 2. In the figure below, DC intersects BA at point B.

D

A

5x + 20

3x B

What is the measure, in degrees, of ABC? C

Show your work.

Answer_________ degrees

Angles with algebra day one.notebook

December 01, 2016

3. The figure below shows parallel lines cut by a transversal.

y

z

x

w

a

d 75

b

Part A Based on the information in the figure, complete the table below with the

measures of each angle

Angle

a

b

d

w

x

y

z

Degree Measure

Part B Name one pair of supplementary angles.

Answer____________________

4. In the figure below, lines m and n are parallel. Line l is a transversal.

(8x) m

B

(3x + 40)

Part A What is the value of x? Show your work.

n A

l

Answer_________________

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download