tolong di jawab no 1-2

KESEBANGUNAN

1.)

SR/AB = PO/CD
16/8 = 4/2
2 = 2

2 : 2

Sisi sisinya sebangun,karena perbandingannya sama

2.)

a)
AB/EF = CD/GH
6/3 = x/6
36 = 3x
12 = x

CD = 12 cm

b)

AB/EF = BC/FG
6/3 = 5,5/x
6x = 5,5 × 3
6x = 16,5
x = 2,75 cm

FG = 2,75 cm

c)

<EHG = <ADC = 76 derajat

d)

<EFG = <ABC = 135 derajat

e)

<DAB = 360 - 135 - 76 - 76 = 73 derajat

f)

<HGF = 76 derajat