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Agenda: 1. Topic 42 Housekeeping: 1. Please keep our room clean :) 2. Please do not pack up early... you miss info. Today you will need: > a calculator > pencil Assignment tonight: > MathXL 42 no internet? try... 4.2 pg. 164 #15, 1823, 25, 27, 2931

Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

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Page 1: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

Agenda:1. Topic 4­2 

Housekeeping:1. Please keep our room clean :)2. Please do not pack up early... you miss info.

Today you will need:> a calculator> pencil

Assignment tonight:> MathXL 4­2

no internet? try...

4.2 pg. 164 #15, 18­23, 25, 27, 29­31 

Page 2: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

Learning Target

4­2  I can apply theorems about isosceles and equilateral triangles to solve problems.

Page 3: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned
Page 4: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

4­2  Isosceles and Equilateral TrianglesIsosceles Triangle

Equilateral Triangle

True or False?  Every equilateral triangle is an isosceles triangle.

At least 2 = sides~ 3 = sides~

Page 5: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

measuring activity

Page 6: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

Find the measures of the missing angles.

1. 2.

81o

3.

Page 7: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

1.

3.

Find the value of x.

2.

Page 8: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned
Page 9: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

Pythagorean Theorem Review

a2 + b2  = c2

When you know 2 sides of a right triangle and are trying to find the 3rd side.

A B

C

D

10 in

6 in

a.  Find CD.

b.  Find the perimeter of triangle ABC.

A B

C

D

10 in

6 in

Page 10: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned
Page 11: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

Equilateral Triangles

Equilateral ­

Equiangular ­ 

Find the measure of angle C

12 cm

Page 12: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned
Page 13: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned
Page 14: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned
Page 15: Assignment tonight:> MathXL 42no internet? try4.2 pg. 164 ... · A prefabricated house is delivered to a foundation in two symmetric halves that are assembled onsite. Along the planned

A prefabricated house is delivered to a foundation in two symmetric halves that are assembled on­site. Along the planned route to the site, the truck must pass under a bridge that has a clearance height of 17 feet. Should the trucker plan a different route for delivering the house? Explain.