The three angles to to add to 180 degrees.
180 - 135 = 45
2006-10-27 11:52:12
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answer #1
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answered by MsMath 7
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Rule: The sum of all the angles in a triangle = 180 deegrees.
Your question said two of the angles added together
= 135 degrees...
So
180 - 135 = 45 Degrees is the size of the missing angle.
2006-10-27 11:57:58
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answer #2
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answered by zahbudar 6
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The angle sum property of a triangle states that the sum of the angles of a triangle is 180 degrees.
The sum of two angles is 135 degrees
Measure of third angle = 180 -135
= 45 degrees
The third angle measures 45 degrees
2006-10-27 22:58:10
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answer #3
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answered by Akilesh - Internet Undertaker 7
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Since the triangle needs to be 180 degrees, you need to do this:
180-135=45 degrees.
2006-10-27 12:05:41
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answer #4
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answered by Anonymous
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180° - 135° = 45°
2006-10-27 11:53:51
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answer #5
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answered by Helmut 7
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180-135= 45 degrees
2006-10-27 11:52:32
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answer #6
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answered by Old Mad One 2
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Yes, all triangles are 180 no matter what kind or what size. So you would subtract the two angles you know to get the third one. 180-135=45
2006-10-27 11:52:13
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answer #7
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answered by akitashencp 2
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180-135=45
2006-10-27 11:52:50
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answer #8
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answered by sb13 2
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Total angle in triangle = 180
180 - 135 = 45 (that's the 3rd angle!!)
This is called sublementary angle ( I think, there is also complementary which I think is if two angles add up to 90 degrees)
For more info, go to AAAMath.com
Hope this helps! :) :) :)
2006-10-27 11:58:48
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answer #9
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answered by lemon drops 3
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45
2006-10-27 12:00:12
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answer #10
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answered by Eros_05 1
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