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# mPQS - PowerPoint PPT Presentation

mSQR. mPQS. mPQR. Note, we have to use 3 letters to uniquely identify each angle. “measure of angle”. “cut into equal halves”. ½  mDEF. mFEW. mDEW. mFEW. mDEF. mDEW. add to 90. right angle. “corner angles”. mMLW = 90. mKLW +. add to 180. straight line.

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## PowerPoint Slideshow about ' mPQS' - hilary-finch

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mPQS

mPQR

Note, we have to use 3 letters to uniquely identify each angle.

“measure of angle”

“cut into equal halves”

½  mDEF

mFEW

mDEW

mFEW

mDEF

mDEW

right angle

“corner angles”

mMLW = 90

mKLW +

straight line

mJHW = 180

mGHW +

two lines intersect

congruent (equal measure)

opposite

mPWS

mRWQ

mPWQ

mRWS

mABD = 2(8) + 26

mABD = 42

mCBD= 6(8)

mCBD= 48

2x + 26

6x

2x + 26 + 6x = 90

8x + 26 = 90

x = 8

Check:

42

+ 48

90 

127

Now plug in …

mPQS = 43 + 3

mPQS = 46

mSQR = 2(43) – 5

mSQR = 81

x + 3

2x – 5

x + 3 + 2x – 5 = 127

3x – 2 = 127

x = 43

Check:

46

+ 81

127 

Now plug in …

mGHI = 5(23) – 1

mGHI = 114

3x – 3

5x – 1

3x – 3 + 5x – 1 = 180

8x – 4 = 180

x = 23

mFHG= 3(23) – 3

mFHG= 66

44

Be Careful here!

P

P

P

T

T

T

x + 11 = ½  88

x + 11 = 44

x = 33

44

(x + 11)

Q

Q

Q

R

R

R

10x – 7

???

4x + 6 + 5x = 10x – 7

9x + 6 = 10x – 7

x = 13

6x + 1

4x + 6

5x

mPQR = 10(13) – 7

mPQR = 123

10x – 13

6x + 1 = 10x – 13

14 = 4x

x = 3.5

mPQR = 6x + 1 + 10x – 13

mPQR = 16x – 12

mPQR = 16(3.5) – 12

mPQR = 56 – 12 = 44

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When you and your assigned class partner are finished, discuss your summary with your partner and add things you missed. Be prepared to share your summary with the class.