class 9

What type of angles are these? (select 2)

• Adjacent Angles

• Linear Pair

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Supplementary angles always add up to

Complementary angles always add up to

Which angles are vertical angles?

• $\angle8\ \&\ \angle7$

• $\angle8\ \&\ \angle6$

• $\angle8\ \&\ \angle5$

Which angle is complementary to  $\angle LJM$  

•  $\angle MJN$  

•  $\angle NJP$  

•  $\angle FGE$  

•  $\angle LJK$  

 $A\ rational\ number\ between\ \frac{1}{7}\ and\ \frac{2}{7}\ is$  

•  $\frac{1}{14}$  

•  $\frac{2}{21}$  

•  $\frac{5}{14}$  

•  $\frac{5}{21}$  

 $On\ simplifying\ \left(\sqrt{5\ }+\sqrt{7}\right)²,\ we\ get$  

• 12

•  $\sqrt{35}$  

•  $\sqrt{5}+\sqrt{7}$  

•  $12+2\sqrt{35}$  

 $simplify\sqrt{125}\ X\ \ \sqrt{5}$  

• 5

• 25

• 35

• 50

 $Find\ the\ value\ of\ a\ and\ b\ if\ \frac{\sqrt{3}\ -1}{\sqrt{3}\ +1}=a+b\sqrt{3}$  

• a=1,b=2

• a=3,b=1

• a=2,b=-1

• a=-1,b=2

Which of the following is irrational?