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The supplement of a 80 degree angle has a measure of?
The supplement of an 80 degree angle is an 100 degree angle.
What is the complement of a 80 degree angle?
a 10-degree angle
How do you make a 80 degree angle with a ruler and a compass?
Construct a 90 degree angle isosceles triangle which will have equal sides and then divide the base into 9 equal parts joining the parts by lines to the apex of the trangle. Each line represents 10 degrees and 8 lines will equal to 80 degrees.
The second angle in a triangle is four times as large as the first The measure of the third angle is 80 degrees more than sum of the other two angles. Find the measure of the second angle?
Let the first angle be x the second angle be 4x and the third angle be 80+4x+x: x+4x+80+4x+x = 180 Collect like terms: 10x = 180-80 10x = 100 x = 10 Therefore the measure of the second angle is 40 degrees.
How do you construct 80 degree angle using compass and ruler?
Draw a point, and a long straight line through it. Put the centre of the compass over the point, with north on the compass (or zero degrees) on the line. Then draw a second line out from the point at 80 degrees on the compass. You'll then have a 80 degree angle between the lines. It's usually a trick that teachers decide to do on their pupils. A compass is what you use to find north and a pair of compasses is used to draw circles.
