Question

CHECK OUT ATTACHMENT
72 + 72 = 144
180 - 144 = 36
am I correct

Answer 1

No. Set up an equation: 2y + 72 = 180

(Just wondering, are you taught algebra at school?)

Answer 2

there is only 1 72

you have 72 + y +y = 180

Answer 3

I take online classes, Therefore I have to learn on my own, or get some help

Answer 4

you have 72 + y +y = 180

to find y, add -72 to both sides
-72+72 + y + y = 180 -72

can you finish ?

Answer 5

@phi 252 - 144 ?

Answer 6

so its 108!

Answer 7

after
-72+72 + y + y = 180 -72

you can simplify. on the left side -72 + 72 is 0
0 + y + y= 180-72

on the right side 180-72 is 108. you have (so far)
y + y = 108
or
2y = 108

divide both sides by 2 to find y
2y/2 = 108/2
y = ?

Answer 8

you can check your answer by adding up all 3 angles (after you find out what y is)
they have to add up to 180 if you got the correct number for y

Answer 9

okay 108/2=54

Answer 10

thanks for taking your time to teach me

Answer 11

now check the answer. replace y with 54. the 3 angles in a triangle add up to 180

72 + 54 +54 = ? 180! it worked.

Answer 12

:) yes it adds up to 180