Geo day 12 7.5.notebook
March 06, 2017
Warm Ups Day 12
1) Find x.
2) Find x.
3) Find x.
Geo day 12 7.5.notebook
March 06, 2017
Warm Up
1) Find x.
2) Find x.
3) Find x.
8
30 ­ x
Geo day 12 7.5.notebook
March 06, 2017
Questions on HW 11 pg 498?
6.25
90 67.5
__
__
=
72 54
1.25 = 1.25
Geo day 12 7.5.notebook
March 06, 2017
QR =9
RS = 12
__
16
3
12
4
__ = __
__
14 14
3
56 = 56
Geo day 12 7.5.notebook
March 06, 2017
st=10
tu=6
AD
AG
CG
pass in
Geo day 12 7.5.notebook
March 06, 2017
Are there 2 different ways to find x?
Geo day 12 7.5.notebook
March 06, 2017
Are there 2 different ways to find x here?
x
Geo day 12 7.5.notebook
March 06, 2017
7.5 Goals
1) Use a scale to find missing lengths between a scale drawing and an actual object.
2) To use the similarity ratio to find the ratio of the perimeter and area and use it to solve for the perimeter and area.
Geo day 12 7.5.notebook
March 06, 2017
Indirect measurement is any method that uses formulas, similar figures, and/or proportions to measure an object. The following example shows one indirect measurement technique.
Geo day 12 7.5.notebook
March 06, 2017
How long is the bath tub?
0
1
2
3
4
5
0°
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Geo day 12 7.5.notebook
March 06, 2017
0
0
23°
1
2
3
1
4
5
2
6
7
8
3
9
10
Find the actual distance between City Hall and El Centro College.
11
4
12
13
5
14
15
Geo day 12 7.5.notebook
March 06, 2017
Lady Liberty holds a tablet in her left hand. The tablet is 7.19 m long and 4.14 m wide.
If you made a scale drawing using the scale 1 cm:0.75 m, what would be the dimensions to the nearest tenth?
Geo day 12 7.5.notebook
March 06, 2017
Given that ∆LMN ∆QRS, find the perimeter P and area A of ∆QRS. 12 cm
9 cm
Geo day 12 7.5.notebook
March 06, 2017
HW 12 7.5 wkst
You will need a Ruler for the assignment!
Our chapter test will be Thursday (Friday). We will review at our next class