Question

Find the lengths of the two legs of a right triangle having an angle with a measure of 30 degrees if the length of the hypothenuse is 4.

a) 2, square root of 2
b) 4, square root of 3
c) 3, square root of 3
d) 5, square root of 3

pls help me

Answer 1

they are 2 and 2sqrt3

Answer 2

@ thomasj: which is it?

Answer 3

Right angle = One angle of 90
It's mentioned that one of the angles is 30.
So, this will form a 30-60-90 triangle.

\(\Large \color{purple}{\rightarrow 2x, x, x\sqrt {3} }\) are the ratios. 2x is the hypotenuse.

So, 2x = 4, x = 2.

So the other sides are:

\(\Large \color{purple}{\rightarrow 2, 2\sqrt{3} }\)

Answer 4

thanks

Answer 5

yw :)

Answer 6

none of them.

Answer 7

Yeah, none of them :/