The square has four right angles. The pentagon has two right angles.

greater than

A pentagon can have up to four angles which measure less than 90 degrees.

A null angle and an acute angle are less than a right angle.

A pentagon need not have any right angles at all, and in fact, a regular pentagon never has any.A pentagon that's not regular can have any number of right angles less than five.

An acute angle is less than a right angle because it is greater than 0 but less than 90 degrees.

Acute angle

An acute angle is an angle that is less than 90 degrees.

Yes, acute angles and right angles are different. An acute angle is less than 90 degrees - a right angle is exactly 90 degrees.

Yes. The sum of the angles in a triangle is 180° All angles in a triangle must be greater than 0° which means that the sum of any two angles must be less than 180° If two angles are right angles (90°), their sum is 180° which is not less than 180°; thus at most one angle can be a right angle. If one angle is a right angle and another is an obtuse angle (greater than 90°), then their sum is greater than 180°, which is not less than 180°; thus there can be at most one of a right angle and an obtuse angle. If two angles are obtuse angles, their sum is greater than 180°, which is not less than 180°; thus there can be at most one obtuse angle. If there is at most one right angle or an obtuse angle, there must be at least two acute angles.

All of the angles in a rectangle are right angles.

It is an "obtuse angle."Angles that are less than 90 degrees are "acute angles."Angles that are exactly 180 degrees are "straight angles."Angles that are exactly 90 degrees are "right angles."

Angles greater than 0 but less than 90 degrees are acute angles.

An acute triangle is a triangle with all angles smaller than a 90 degree right angle.

Acute angles are angles that are less than 90 degrees. Obtuse angles are angles that are more then 90 degrees and less then 180 degrees Any angle that is 90 degrees is a right angle. == == == ==

First, an acute angle is an Angle that is less than a right angle (<90°) Secondly, an obtuse angle is one that is more than a right angle but less then a straight angle (<180°) then, the complementary angles of a pair of angles is 90° or a Right angle and the complement of an acute angle is the amount needed of an unknown angle (against known angles) to make 90° or a right angle a supplementary angle are a pair of angles which, when Added together, make 180° or a straight line. and the suplement to an angle is the value of an unknow angle to to be added on to make 180°

Angles less than 90 = actute Angles of 90 = right angle Angles more than 90 = obtuse Angles more than 180 = reflex

It's an obtuse angle.Classifcations of angles:Acute angle: Angles that are greater than 0 degrees and less than 90 degrees.Right angle(perpendicular angle): Angles that are 90 degrees.Obtuse angle: Angles that are between 90 degree and 180 degrees.Straight angle: Angles that are 180 degrees.

A triangle and any irregular polygon with 4 or more sides can have some angles that are lass than right angle.

rhombus

Depends on the angle. Acute angles are less than 90 degrees. Right angles are 90 degrees. Obtuse angles are over 90 degrees.

There are typically 3 angles, obtuse, acute, and right. obtuse- an angle that measures over 90° acute- an angle that measures less than 90° right- an angle that measures exactly 90°

Not necessarily. The two equal angles in an isosceles triangle must both be acute angles. If they were right angles or obtuse angles then a triangle could not be formed. If the two equal angles are less than 45° each then the third angle is an obtuse angle. If they are both 45° then the third angle is a right angle and if they are both greater than 45° then the third angle is an acute angle.

Three right angles, where one of the "arms" of the angle curves inwards which makes the angle appear less than a right angle.

More- each angle is over 90 degrees.

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