Respuesta :

Answer: AB=6.85m

∆ABC = 33.37 degree

Step-by-step explanation:

Using Pythagoras theory

AB²=AC² + CB²

AB² = 3.8² + 5.7²

AB² = 14.44 + 32.49

AB² = 46.93

Take the square root of both sides.

√AB² =√46.93

AB = 6.85m

Just in case you are looking for angle B

If you want to find angle ∆ABC

To find ∆B using trig rule

Sin@ = opposite/hypotenuse

Sin@= 3.8/6.85

Sin@ = 0.55

@ = 33.37 degree

22longgabriel

Answer:

6.851=c

Step-by-step explanation:

Assuming that triangle ABC is a right triangle this is actually super simple. All you have to do is use the pythagorean theorem ((a²+b²=c²)("a" and "b" are the two short sides that make the right angle and "c" is the hypotenuse)).

a²+b²=c²

3.8²+5.7²=c²

14.44+32.49=c²

46.93=c²

//so here you have to take the square root of both sides so you are left with "c" and not "c²"

√46.93=√c²

6.851=c