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You must use the formulas you know that describe the properties of triangles
to relate the information you're given to the size of the unknown angle.
Do you want to know the measurement / size of the angle.
The internal angles of a triangle add up to 180 degrees. If you know two angles then add them together
eg 60 + 30 = 90 now subtract 90 from 180, 180-90 = 90
So the missing angle is 90 degrees
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How do you find a missing angle for a triangle?
Subtract the two known angles from 180 degrees will give you the missing angle
How do you find a missing exterior angle of a triangle?
At each vertex of a triangle, an exterior angle of the triangle may be formed by extending ONE SIDE of the triangle.
What is the first step when trying to find a missing angle?
If you are trying to find the missing angle of a triangle you do 180 degrees minus your two other angles. However if you are trying to find the missing angle of a quadrilaterals you do the same thing but with 360 degrees.
25 39 what is the missing angle?
If they are the angles of a triangle then the missing angle is 116 degrees
Can an equilateral triangle have a total of 120 degrees?
no because an equilateral triangle is a total of 180 degrees not 120. but if you need to find the missing angle or missing degree then yes!
