Pratice

Each pair of vertically opposite angles are equals.

• True

• False

Look at the diagram. What is the value of  $\angle b$  ?

•  $123\degree$  

•  $58\degree$  

•  $132\degree$  

•  $68\degree$  

What is the value of  $\angle e$  ?

•  $159\degree$  

•  $31\degree$  

•  $21\degree$  

•  $59\degree$  

Which angles are vertically opposite?

• $\angle a\$ and $\angle d$

• $\angle a\$ and $\angle b$

• $\angle c$ and $\angle d$

• $\angle a$ and $\angle c$

Which tool do we use to measure an angle?

• ruler

• protractor

• scale

• measuring tape

What is the value of  $\angle e$  ?

•  $50\degree$  

•  $140\degree$  

•  $40\degree$  

•  $150\degree$  

Which statement is true?

• $\angle f$ and $\angle h$ are vertically opposite

• $\angle g\ =\ 15\degree$

• $\angle h\ =\ 165\degree$

• all of them

Tick the correct answers.

• $\angle i\ =\ 135\degree$

• $\angle h\ =135\degree$

• $\angle j\ =\ 45\degree$

• $\angle i\ =\ 45\degree$

Calculate the value of x

Calculate the value of x