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Welcome! The Topic For Today Is…. CHAPTER 4. Topic 1: 200. Question: Answer The angle is 28⁰ !. Find the measure of P1. Back. Topic 1: 400. Question : Find x Answer X=4. Back. Topic 1: 600. Question: Answer Angle 1= 97⁰ Angle 3= 62⁰ Angle 2= 83⁰ .

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Presentation Transcript

The Topic For Today Is…

• Question:

• Answer The angle is 28⁰ !

Find the measure of P1

Back

• Question:

Find x

X=4

Back

• Question:

Angle 1= 97⁰ Angle 3= 62⁰

Angle 2= 83⁰

Find the measures of angles 1, 2 and 3

Back

• Question:

• Find the measures of

each numbered angle:

Angle 1=140⁰ Angle 2=40⁰

Angle 3=65⁰ Angle 4=75⁰ Angle 5=115⁰

Back

• Question:

• 15⁰!

Back

• Question:

Decide whether the statement is true or false. If it is false, replace the underlined word with a word that will make the statement correct

“If the measures of two angles of a triangle are 62 and 93, then the measure of the third angle is 35.”

False- 25⁰ is the correct angle

Back

• Question:

Find x and the measure of each side of the triangle:

∆DEF is isosceles, D is the vertex angle,

DE= x+7, DF = 3x-1, EF = 2x+5

DE=11

DF= 11

EF=13 X=4

Back

• Question:

In ∆RST, angle T is 5 more than angle R, and angle S is 10 less than angle T. What is the measure of each angle?

• Angle R=60⁰ Angle S=55⁰Angle T=65⁰

Back

• Question:

In ∆GHI, angle H is 20 more than angle G, and angle G is 8 more than angle I. What is the measure of each angle?

Angle G=56, Angle H=76, Angle I=48

Back

• Question:

In ∆PQR, angle P = angle Q, and angle R is 24 less than angle P. What is the measure of each angle?

Angle P=68⁰ Q=68⁰ R=44⁰

Back

• Question:

Which Postulate can you use to prove these triangles congruent?

• SAS

Back

• Question:

• Lines EH and DG bisect each other.

How would you prove that these triangles are congruent?

• SAS!

Back

• Question:

Which triangles are

congruent in the figure?

∆NMH= ∆HGN

Or ∆HMN = ∆NGH

Back

• Question:

Name the corresponding congruent angles and sides for the congruent triangles:

Angle A ≅ Angle D

Angle ABC ≅ Angle DCB

Angle ACB ≅ Angle DBC, AB ≅ DC

AC ≅ DB, BC ≅ CB

Back

• Question:

∆RST is isosceles with RS=RT, angle S≅angle MPS

M, N, and P are midpoints of their sides

NP ≅ MP.

How will you prove that

∆SMP ≅ ∆TNP?

• SAS or SSS

R

N

M

S

T

P

Back

• Question:

How many triangles are there?

• 8!

Back

• Question:

Name the congruent angles and sides for

∆ABC≅ ∆DEF

Lines: AB=DE, BC=EF,AC=DF

Angles: A=D,B=E,C=F

Back

• Question:

X= 34

Y= 15 Z= 142⁰

Find x, y, and z!

Back

• Question:

• Determine whether ∆EFG ≅∆MNP given:

E(-4,-4), F(-2,1), G(-2,-3)

M(4,-4), N(2,1), P(2,-3) & show how!

YES!

Back

• Question:

Angles CFD=60⁰ ABF=70⁰ AFB=55⁰ A=55⁰

Measure of angles:

CFD

ABF

AFB

A

Back

• Question:

Point H is at (5,2) and point K is at (7,10)

What is the slope of Line HK?

4!

Back

• Question:

Write the equation for a line with a slope perpendicular to the line y=3x+5

y=-1/3x+5, anything with -1/3 as the slope of the line!

Back

• Question:

• 3 + 6

• 12!

Back

• Question:

Write an equation in slope intercept form for the line that satisfies the following conditions:

Perpendicular to y=-4x+1, contains the point (-3,1)

y=1/4x+7/4

Back

• Question:

How would you properly name this plane??

Plane DBE or Plane R

Back

Bonus Question

• Question:

∆ABC is isosceles, ∆DCE is

equilateral, ∆FCG is

isosceles. Find the measures of

the five numbered angles at

vertex C.

Angle 1=18⁰, Angle 2=17⁰, Angle 3=26⁰

Angle 4=17⁰, Angle 5=18⁰…how to check?

Back

### Daily Double

The Winner Of The Last Round

Write Down How Much Money

You Are Willing To Risk

If You get the Question write you win that money

If you get it wrong you Loss the money!

### Daily Double

The Winner Of The Last Round

Write Down How Much Money

You Are Willing To Risk

If You get the Question write you win that money

If you get it wrong you Loss the money!