∆feb ~ ∆ ref ~ ∆rfb. complete the proportion

∆FEB ~ ∆REF ~ ∆RFB. Complete the proportion.

ER = EB FE FE

∆FEB ~ ∆REF ~ ∆RFB. Complete the proportion.

ER = RB FR FR

∆FEB ~ ∆REF ~ ∆RFB. Complete the proportion.

BF = BR EF FR

BF = BR BE BF

∆FEB ~ ∆REF ~ ∆RFB. Complete the proportion.

EF = BE ER EF

EF = BE FR BF

∆FEB ~ ∆REF ~ ∆RFB. Complete the proportion.

BE = BR BF BF

Find the value of x & y. 40 = 45 60 x

40x = 2700 x = 67.5

y

55x

4540

60

40 = 55 100 y

40y = 5500 x = 137.5

Find the value of x & y. 12 = 18 48 x

12x = 864 x = 72

y18

x

12

48

60

12 = y 60 60

12y = 720 x = 12

∆EAT ~ ∆YUM. Find the value of x.

A E

T

18

20Y U

M6x – 3 5x

– 1

3x + 4

18 = 20 5x – 1 3x + 4

100x – 20 = 54x + 72 46x = 92 x = 2

∆ABC ~ ∆______ by _______

90 = 100 . 135 150

13,500 = 13,500 √

B

CA 150100

E

D

13590

AED SAS~

∆ABC ~ ∆______ by _______

B

CA

E

DAED AA~

∆ABC ~ ∆______ by _______

15 = 12 . 22.5 18

270 = 270 √

B C

A

15

14

12

E F

D2218

22.5

15 = 14 . 22.5 22

330 ≠ 315 NOT ~

B C

AD

∆ABC ~ ∆______ ~ ∆ _______

ADB BDC

A = 50 C = _____ ABD = ______ CBD = _____

B C

AD

40 40 50

M

L

W I

WIM = 43 LIM = _____ W = ______ L = _____

47 47 43

M

L

W I

∆WIM ~ ∆______ ~ ∆ _______

WLI ILM

∆RVY ~ ∆______ ~ ∆ _______

Y R

V E

RYE YVE

Y R

V E

VYE = 31 EYR = _____ V = ______ R = _____

59 59 31

A model house is built with a scale of 1’ = 30’. If the width of the model is 7.5’, how wide is the house?

1 = 7.5 . 30 w w = 225’

A model house is built with a scale of 1’ = 30’. If the length of the house is 128’, how long is the model?

1 = L . 30 128 30L = 128 L = 4.27’

A building that is 73’ tall has a 54.75’ shadow. How long is the shadow of a nearby man who is 6 ½’ tall?

73 = 6.5 . 54.75 x 73x = 355.875 x = 4.875’

A 16’tall bulldozer has a 20’ shadow. How tall is the tractor if its shadow is 28’ long?

16 = x . 20 28 20x = 448 x = 22.4’

∆BAD ~ ∆______ ~ ∆ _______

YA

B D

YBD YAB