Question

Find m angle B in the triangle below.

Answer 1

B(6x-77) A(4x+7) C(6x+10)

Answer 2

Sum of all the measures of angles of a triangle is 180 Degrees.

Answer 3

6x-77+4x+7+6X+10=180

Answer 4

20x-60=180

Answer 5

20x=240
x=12

Answer 6

So:
\[6x-77+4x+7+6x +10=180 \\ 16x -60 = 180\]

Answer 7

oops 16x =240

Answer 8

\(20x\) ??

Answer 9

so x=15

Answer 10

Then plug it back in.

Answer 11

\[16x= 240 \\ and \ find \ x \ here\]

Answer 12

Good job @waterineyes .. you direct correct answers... :)

Answer 13

6(15)-77
=13

Answer 14

Okay thank you all!!! :)

Answer 15

Can someone give a medal to @waterineyes ?

Answer 16

I don't need that @kcurri give it to Leader. :)

Answer 17

Alright. Thank you all! :)