alleryWhich name is given to every angle smaller than a right angle?
AAcute angle
BObtuse angle
CReflex angle
DStraight angle
Answer & Solution
Correct answer: A. Acute angle
1. A right angle is 90°, so a smaller angle is called acute.
2. Obtuse angles lie between 90° and 180°, so they are larger.
3. Reflex angles lie between 180° and 360°, and a straight angle is exactly 180°.
_Source: Wikipedia, Angle, Common angles_
Keep practising Basic Geometrical Ideas
Browse all Basic Geometrical Ideas questions for CTET, or explore more Mathematics topics.
Related questions
In strict maths, a circle is only the boundary of which region?A ring-shaped region between two circles with the same centre is called what?What is the point equally far from every point on a circle called?What do we call half of a circle cut along a diameter?A line that goes into a circle and out again at two points is named what?Touching a circle at just one point, a straight line is called what?The region cut off from a circle by one chord, along with its arc, has what name?A region bounded by two radii and an arc of a circle is called what?