MN O P M’N’ O’ P’ SAME PLANE R D k.

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Transcript of MN O P M’N’ O’ P’ SAME PLANE R D k.

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M N

OP

M’ N’

O’P’

ACDERule2

1 :

2

104 x

DE

52 xDE

SAME PLANE

221 xx

xm

22

37

mx

221 yy

ym

12

31

my

4,3)2,5( T )2,2(

R

D

k

2 Triple ,4,53 )1

Triple ,15,178 )2

,24,258 )3 222 25248 62557664

625640

80

The diagonals of a rhombus bisects the angles

Consecutive angles of a rhombus are supplementary

)80(2

1DBCm

40DBCm

5 4

53

2

3m

2

3// m

bxy 2

3

b )2(2

33

b 33b6

C

B

A

45

55 80

Longest

Shortest

12

15

BhV hrV 21562 V540V

T F^ FT F FT F FT F T

126 yx

126 xy

26

1 xy

4)2(3 yx

463 yx

4 4 yx 23yx 23

221

221 )()( yyxxd

22 ))6(4()35( d22 )10()8( d

164d414 d

412d

x

5x

5

6

6 x

x

66)5( xx

3652 xx

03652 xx

049 xx

04 09 xx

4 9 xxReject

)2,3( )3,2(90R 4D

)12,8(

x

152 x55 x

15255 xxx15355 xx

1552 x102 x5x

152 x15)5(2

1510 25

m

P

60 120

12060180

302

60

30Cm

AC

B

x

y

B’

C’A’

)0,4()3,1(

)2,2(

CBA

)0,4(')3,1('

)2,2('

CBA

180)2(anglesinterior of Sum n

180)25( S540S

5

540angle Int. M.

108angle Int. M.

5

360angle Ext. M.

72angle Ext. M.

x xxx98272 x

272 xx 236

x26

26CE

462 xy462 xy

23 xy3m

3

1m

4x

X

X

X

:Solutions 1,6,3,2,5,2

Statement Reason

1. Given

anglesright are E and B 4. 4. Perpendicular segments form right angles

BEAB 1.2. Given BEDE 2.

DEFABC ~ 9. AAAA .9

ECABFD 3. 3. Given

5. EB 5. All right angles are congruent

pairlinear a form and pairlinear a form and 6.

ACBECADFEBFD

6. Two adjacent angles that form a

straight line are a linear pair

arysupplement are and arysupplement are and 7.

ACBECADFEBFD

7. Linear pairs are supplementary

ACBDFE 8. 8. Supplements of congruent angles are congruent.

3x

20

16

22 x

36

22

3

36

16

x

x

)3(36)22(16 xx

108363232 xx

108432 x

x4140 x35

3xAC

335 AC32AC

x

y

A

M

T

H

run

risem

05

0ATm

3

4THm

5AMd

4

3

5

tripleean Pythagor5,4,3

5ATd

5THd tripleean Pythagor5,4,3

5HMd

Since all four sides are congruent, quadrilateral MATH is a rhombus.

Since the slopes of consecutive sides are not negative reciprocals, they are not perpendicular and do not form a right angle.

Therefore, MATH is not a square.