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2007-01-01 04:31:04 · 6 answers · asked by bottle of rum 1 in Science & Mathematics ➔ Mathematics
given that n//m,find the value of x?
i dont fully understand
2007-01-01 04:31:56 · update #1
Draw a line parallel to n and m that goes through the vertex of the angle x. So now the angle x is in 2 parts, one above the line, and one below it. The part of the angle above the line is 55 (this is one of the basic rules for angles and lines, although I don't remember if it has a name). Similarly, the part of the angle below the line is 25. The angle x is the sum of these 2 angles:
x = 55 + 25 = 80
2007-01-01 04:41:54 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Okay, first, I can't see that top angle clearly.
It looks like 55 degrees?
If it is, here's how to solve it.
First imagine a line intersecting both m and n, which is also perpendicular to both.
Now, that gives you a 5 sided polygon.
Now the interior angles of a 5 sided polygon equals (5-2)*180=540 degrees.
Now, the interior angles of this polygon are 90+90+(180-55)+(180-25)+x=540, or 460+x=540. So, x= 80 degrees.
2007-01-01 04:50:46 · answer #2 · answered by yljacktt 5 · 0⤊ 0⤋
There are two interior angles between the parallel lines.
All interior angles on the same side of the paralllel lines add up to 180°
55 + 25 + x = 180
80 + x = 180
80 + x - 80 = 180 - 80
x = 100°
The answer is 100°
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2007-01-01 06:24:44 · answer #3 · answered by SAMUEL D 7 · 0⤊ 0⤋
x=80 as it is the sum of alternate interior angles of 55 n 25 which r equal to 55 n 25 hence 80
2007-01-01 04:52:59 · answer #4 · answered by well thts it...... 3 · 0⤊ 0⤋
25+55 = 80 degrees
Like Blue said, it has got some name like opposite transverse angles or something like that, but anyway when you have a Z shape like that, the theorem says those two angles are equal.
2007-01-01 04:46:17 · answer #5 · answered by a_math_guy 5 · 0⤊ 0⤋
I need more information.
Were is x in relation to the parallel lines
I can only assume that there is another line (the transversal) that cuts across the parallel lines?
2007-01-01 04:37:47 · answer #6 · answered by tval_friedly 2 · 0⤊ 0⤋