Question

Given that triangle MON is equilateral find m 10 years ago

Answer 1

@ganeshie8

Answer 2

@welshfella @Michele_Laino

Answer 3

is the triangle NMP a right triangle?

Answer 4

I think so

Answer 5

Hint:
we have:
measure <MOP= 180- measure >MON= 180-60=...?

Answer 6

120

Answer 7

furthermore triangle MOP is an isosceles triangle, so:
meaure <OMP = measure <OPM

Answer 8

oh ok thanks

Answer 9

we have:
x+x+120=180

Answer 10

so:
\[\begin{gathered}
2x + 120 = 180 \hfill \\
\hfill \\
2x = 180 - 120 \hfill \\
\hfill \\
2x = 60 \hfill \\
\end{gathered} \]
what is x?