What are the all kinds of angle and an example?

Answer 1

Bsically...

Obtuse- more than 90

Right- 90

Acute- less than 90

Reflex-more than 180

I think

• An angle of 90° (π/2 radians, or one-quarter of the full circle) is called a right angle.

Two lines that form a right angle are said to be perpendicular or orthogonal.

• Angles that are not right angles or a multiple of a right angle are called oblique angles.
• Angles smaller than a right angle (less than 90°) are called acute angles ("acute" meaning "sharp").
• Angles larger than a right angle and smaller than two right angles (between 90° and 180°) are called obtuse angles("obtuse" meaning "blunt").
• Angles equal to two right angles (180°) are called straight angles.
• Angles larger than two right angles but less than a full circle (between 180° and 360°) are called reflex angles.
• Angles that have the same measure (i.e. the same magnitude) are sometimes said to be congruent, though the diagrams that represent them need not be congruent, so others (including Euclid) prefer to say that they are equal in size, or just "equal".
• An angle of 90° (π/2 radians, or one-quarter of the full circle) is called a right angle.

Two lines that form a right angle are said to be perpendicular or orthogonal.

• Angles that are not right angles or a multiple of a right angle are called oblique angles.
• Angles smaller than a right angle (less than 90°) are called acute angles ("acute" meaning "sharp").
• Angles larger than a right angle and smaller than two right angles (between 90° and 180°) are called obtuse angles("obtuse" meaning "blunt").
• Angles equal to two right angles (180°) are called straight angles.
• Angles larger than two right angles but less than a full circle (between 180° and 360°) are called reflex angles.
• Angles that have the same measure (i.e. the same magnitude) are sometimes said to be congruent, though the diagrams that represent them need not be congruent, so others (including Euclid) prefer to say that they are equal in size, or just "equal".
• Two angles opposite each other, formed by two intersecting straight lines that form an "X"-like shape, are called vertical angles or opposite angles. These angles are equal in size.
• Angles that share a common vertex and edge but do not share any interior points are called adjacent angles.
• Two angles that sum to one right angle (90°) are called complementary angles. Two angles opposite each other, formed by two intersecting straight lines that form an "X"-like shape, are called vertical angles or opposite angles. These angles are equal in size.
• Angles that share a common vertex and edge but do not share any interior points are called adjacent angles.
• Two angles that sum to one right angle (90°) are called complementary angles.