Q: A triangel has one angle of 80 degrees and another of 60 degreeshow many degrees must there be in the third angle?

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Because the sum of the interior angles of a triangle must equal 180 degrees, the third angle must equal 180-80-60 = 40 degrees.

It must be 40 degrees. Because, the sum of internal angles should be 180 degrees. Accordingly, the third angle (C) = 180-(A+B) = 180 - (80+60) = 40 degrees

The answer will depend on which angle is 63 degrees, and the measurement units used for c.

An angle of 283 degrees is a reflex angle

The internal angles of a triangle add up to 180 degrees so in an equilateral triangel each internal angle must be 60 degrees, as 3 x 60 = 180.

5

Complement . . . another angle, of 53 degrees Supplement . . . another angle, of 143 degrees

40 degrees

77 degrees

40 degrees

The Right Angle.

It is another right angle of 90 degrees because supplementary angles add up to 180 degrees.

3 and it will be an equilateral triangle

An angle that when added to another angle, equals 180o ...For instance, the supplement of 80 degrees is 100 degrees.

A right angle is a 90 degrees angle

another angle, of 53 degrees

A second angle measuring 90 degrees minus the first angle.

40 degrees

50

It is a reflex angle of 283 degrees because it is greater than 180 degrees

If your measuring it to the vertical antoher measure would be 13 degrees. If your mesauring it to the horizontal another measure would be 77 degrees. If you take this angle another 360 degrees a corresponding angle would be 643. If you take this angle another 360 degrees a corresponding angle would be 1003. You can keep doing this infinitely. Just add 360 and it will be the same angle since you are going in a circle.

An angle that equals 140 degrees would be considered an "obtuse" angle. This is because it is greater than 90 degrees but does not exceed a straight line of 180 degrees.

40

360 degrees

An angle greater than 0 but less than 90 degrees is an acute angle

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