help me solve a - j please . will medal

Question

anonymous · Answer

attachment

anonymous · Answer

@Tayssir try asking one question at a time, and help on getting it solved. Usually by then, you'll understand the method your worksheet is trying to teach you.

anonymous · Answer

@cardinal_carlo can you help me understand the first one

anonymous · Answer

@Tayssir could I please ask you to zoom in on the first one.

anonymous · Answer

@cardinal_carlo

anonymous · Answer

That is a special right triangle (i.e. 45-45-90). That being said, our sides should equate each other:
$$a = 4$$
And for b, we just multiply the side-value with root two like so:
$$4\sqrt{2} = b$$

You should take time to remember your special triangles @Tayssir

anonymous · Answer

b=5.6 ? @cardinal_carlo

anonymous · Answer

Close.
$$4\sqrt{2} ~ \approx 5.6569$$

Although it's usually best to leave your answer in radical form. It really depends on your professor.

anonymous · Answer

thank you !!