Question

Given the following figure, what is the value of m and (m+40)?

Answer 1

Ok, we know that the interior angles of a quadrilateral to up to 360 degrees, don't we?

So in the same way we equated things in the other question, we can do it again here.

Add up all the 4 angles and put it equal to 360 in order to find m.

Ok?

Answer 2

ok

Answer 3

im still confused

Answer 4

(2m-10) +(m+40)=360- (67+55)
do you understand why?
can you solve it?

Answer 5

yes thank u

Answer 6

360-(55+67)=360-122
=238
(2m-30)+(m+40)=238
3m+10=238
m= (238-10)/3
m=76

Answer 7

:)
m=76 is right

Answer 8

(m+40)= 76+40
=116

Answer 9

OK chris, u all up to date now?

Answer 10

nice pic