Bellwork!! Aaron mixes 2 ounces of oil to each gallon of gas. Which proportion could be used to determine the amount of oil “a” needed for 2.5 gallons of gas? (DOK 3) I. II. III. a) I and II b) II and III c) I and III d) I, II, and III 2 1 2.5 a 2 2 1 5 a 2 1 2.5 a
Aaron mixes 2 ounces of oil to each gallon of gas. Which proportion could be used to determine the amount of oil “a” needed for 2.5 gallons of gas? (DOK 3) I. II. III. a)I and II b)II and III c)I and III d)I, II, and III. - PowerPoint PPT Presentation
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Bellwork!!
Aaron mixes 2 ounces of oil to each gallon of gas. Which proportion could be used to determine the amount of oil “a” needed for 2.5 gallons of gas? (DOK 3)
I. II. III.
a) I and IIb) II and III c) I and IIId) I, II, and III
2
1 2.5
a 2 2
1 5
a
2 1
2.5a
And now it’s time for…….
Timed Skill Drill….. Homework Review…
TSD H.R.
Congruent FiguresBy: Mrs. YowPre-Algebra
obj. 3c
What are Congruent Figures?
Congruent figures.... Are figures that have the exact same shape AND size!
Why learn about Congruent Figures?
Let’s see…
You see congruency in Architecture!
World Trade Center
Congruency in Architecture!
Petronas Twin Towers (Malaysia’s version)
Congruency in Architecture!
Portland, Maine Convention Center and Hotel
The US Department of Treasury must use congruency when it makes money!
Manufacturers use congruency when making their products!
Symbol for CongruenceIf two polygons are congruent,
then their corresponding or matching sides and angles are
also congruent.
These triangles are congruent
Name the corresponding parts
___
___
___
A
B
C
___
___
___
AB
BC
AC
____ABC
Make 6 more congruence statements
FUN KID Given:
Answer the following for PRI BJH. Sketch a figure if needed.IPR ______ R _____ _____H _____
If I = 70 and B = 50, then J = _____If RI = 8 cm, BJ = 6 cm, BH = 7 cm, then PR
= _____
RP
The sum of the angles of a quadrilateral is 360.
quadrilateral BRAV quadrilateral METSquadrilateral AVBR quadrilateral _______If V = 62, then ___ = 62.If RA = 7 cm, then ____ = 7 cm.If E = 100, then ___ = 100.If MS = 11 cm, then ____ = 11 cm.Using the measures of V and E given
above, if T = 110 then B = ____.
In closing…..
Make a congruence statement and list all congruent parts.