Question

Which could be used to find the value of x?

Answer 1

@jim_thompson5910 please help

Answer 2

see that little square in the angle?

Answer 3

what does that little square signify?

Answer 4

any ideas or are you completely lost?

Answer 5

completely lost...

Answer 6

that's ok, just let me know if you are or not

Answer 7

that little square means that the angle (the larger overall angle) is a right angle

Answer 8

ie it's a 90 degree angle

Answer 9

so the idea is that if you break up the angle into pieces, then you should be able to put the pieces of the angle to form the original right angle again

these pieces should add to 90 degrees

which property are we using here?

Answer 10

would it be Angle Adition Postulate?

Answer 11

you nailed it

Answer 12

the angle addition postulate is just a fancy way of saying that if you break an angle into pieces, then you can find the measure of the angle if you add up the pieces

Answer 13

if you know the pieces, then you can add them to get the original (whole) angle again