PLZ HELP ME I BEGG YOU
1 answer:
You might be interested in
The first one can be done by Pythagoras theorem such as 
then 
then 
The second one can also done by Pythagoras theorem, note that this is isosceles triangle so
, again by using Pythagoras theorem 
then 
then 
For the last one can also done by property of 30-60-90 triangle.
The second one can also done by Pythagoras theorem, note that this is isosceles triangle so
For the last one can also done by property of 30-60-90 triangle.