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# intro angle sum

by

## Enrique Baloyra

on 17 May 2018

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#### Transcript of intro angle sum

subject area
body of knowledge
idea
benchmark
Use Angle Sum Theorem.
Angle Sum
hw 82
MAFS.8.G.1.5
Name
Date
Period
Assignment
How do I find measures of angles in polygon?
ESSENTIAL QUESTION
EXIT SLIP
3 - (-7 ) (-12) - (-10) (-7) - (-9)
On 1/2 piece of paper.
On 1/2 piece of paper.
Explain how to simplify using the Counters Game rules.
ESSENTIAL QUESTION
3
4
_
Cut out a triangle.
Make sure to keep the sides straight.
The two rectangular prisms shown below are similar.

What is the height
of the larger prism?

A. 10.3 inches
B. 18.9 inches
C. 12.6 inches
D. 14.4 inches

Mark each angle (corner).
Sum of the measures of the interior angles of ANY triangle is 180 degrees.

measure of angle A
measure of angle B
+
measure of angle C

180 degrees
Solve for x.
Find the missing angle.
PreAlgebra
Green TEXTBOOK
p 416
Tear off 2 angles.

Put them up with 3rd angle.
What is the sum of the measures of the interior angles of this pentagon?

What is the measure of any one angle?
What is the sum of the measures of the interior angles of this hexagon?

What is the measure of any one angle?
Which set of angles is NOT a triangle?

52, 43, 85
43, 62, 75
26, 49, 105
33, 69, 54
What is the value of x?
105
2x
x
What is the value of x?

(2x - 5)
o
Complete the table.

# of sides polygon sum of angles
3 triangle 180
4
5
6
7
8
9
10
12
Solve each system of equations.

y = x - 4 and y = 2x + 5

y = -3x + 7 and 3x - y = 11
The diameter of Earth is approximately 1.28 x 10 km. The diameter of Jupiter is approximately 1.43 x 10 km. Approximately how many times longer is the diameter of Jupiter than the diameter of Earth?

Simplify (5 x 5 )(5 )
Find measure of each angle.
vertical angles are congruent
1
2
_
CLASSWORK

wb1 pp 221-227
4
5
2 -3 -2
Axis of symmetry.
A
B
C
Full transcript