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Can a congruent angle add up to 90?
A single angle can only add up to its own value! And how can a single angle be congruent? There have to be at least two angles for them to be congruent (or not).
What are the two angles that together form a straight angle?
Any two angles who's measures add up to 180 degrees form a straight angle.
An angle's measure is twice its supplement's what is the measure of the two angles?
A supplemental angle "completes" a given angle to make it a straight angle (180 degrees). The supplement of 90 is 90. The supplement of 100 is 80. As long as the two angles add up to 180 they supplement each other. So, you have some angle, x and its supplement, 180-x. The supplement is twice as big as the angle. 180-x = 2*x Solve for x and you're done!
What is the measure of the complementary angle of 60 degrase angle?
Complementary angles add up to 90*, so a 60* angle's complement is 30*.
What is the supplamentary angle of 160 degrees?
20 degrees. the definition of a supplementary angle is two angles that add up to 180 degrees.
