The sign for a 90 degree is a small, perpendicular mark in the corner of the angle, to form a box with the angle.
Also, the sine of 90 degrees is 1
Chat with our AI personalities
no because the angles in the X are not 90 degrees. a + would be perpendicular though because all four of the angles in the plus sign are exactly 90 degrees.
Depends on the angle. Acute angles are less than 90 degrees. Right angles are 90 degrees. Obtuse angles are over 90 degrees.
Yes, the sum of complementary angles is 90 degrees.
Acute angles are less than 90 degrees. Obtuse angles are greater than 90 degrees. Right angles are 90 degrees.
No, it has two angles over 90 degrees and two angles below 90 degrees.