sisi empat kitaran

 $Cari\ \angle BCD$  

•  $78\degree$  

•  $180\degree$  

•  $102\degree$  

Cari nilai x.

• $28\degree$

• $30\degree$

• $112\degree$

Cari nilai y.

• $44\degree$

• $56\degree$

• $112\degree$

 $\angle ECB\ +\ \angle CBA\ =$  

•  $180\degree$  

•  $184\degree$  

•  $185\degree$  

x =

y =

• x = 20

  y = 40

• x = 22

  y = 49

• x = 23

  y = 41

cari nilai x dan y.

• x = 15

  y = 105

• x = 15.5

  y = 102.5

• x = 17

  y = 95

• x = 29.5

  y = 32.5

cari nilai x.

• 25

• 30

• 35

cari nilai y.

• 25

• 55

• 90

• 130

cari nilai z.

• 55

• 50

• 125

• 130

cari nilai x.

• 30

• 50

• 80

• 100