Given AB AND AC ARE THE LEGS OF ISOSCELES TRIANGLE ABC
mANGLE 1=5X
mANGLE 3=2X+2
FIND m ANGLE 2

IS MY WORK CORRECT?

MY WORK:
5X+2X+2=180
X=178/7
SUBSTITUTE
2(178/7)+2
=370/7

Question

Given AB AND AC ARE THE LEGS OF ISOSCELES TRIANGLE ABC
mANGLE 1=5X
mANGLE 3=2X+2
FIND m ANGLE 2

IS MY WORK CORRECT?

MY WORK:
5X+2X+2=180
X=178/7
SUBSTITUTE
2(178/7)+2
=370/7

daisy.xoxo619 · Answer

|dw:1404456007834:dw|

mathstudent55 · Answer

Why did you assume that the sum of those 2 angles is 180?

daisy.xoxo619 · Answer

bcuz they form straight angle=180

mathstudent55 · Answer

Ok, good.
Now you have x, you need to find the measure of the angle.

daisy.xoxo619 · Answer

all of  the angles or which one?

mathstudent55 · Answer

Oh, I see. You did that already.

daisy.xoxo619 · Answer

so would the m<2=370/7

mathstudent55 · Answer

You're correct.

daisy.xoxo619 · Answer

thanks for the help:)

mathstudent55 · Answer

You're welcome, but you did all the work yourself. Good job!