Name three examples of angles from your daily life.
Name the vertex and the arms of ∠ABC, given in the figure below.
How many angles are formed in each of the figures given below? Name them.
State the type of each of the following angles:
Classify the angles whose magnitudes are given below:
(i) 30deg
(ii) 91deg
(iii) 179deg
(iv) 90deg
(v) 181deg
(vi) 360deg
(vii) 128deg
(viii) (90.5)deg
(ix) (38.3)deg
(x) 80deg
(xi) 0deg
(xii) 15deg
How many degrees are there in
(i) one right angle?
(ii) two right angles?
(iii) three right angles?
(iv) four right angles?
(v) 2/3 right angle?
(vi) 1 \frac{1}{2} \text { right angles? }
Measure each of the following angles with the help of a protractor and write the measure in degrees:
Construct each of the following angles with the help of a protractor:
(i) 25deg
(ii) 72deg
(iii) 90deg
(iv) 117deg
(v) 165deg
(vi) 23deg
(vii) 180deg
(viii) 48deg
Where does the vertex of an angle lie?
(a) In its interior
(b) In its exterior
(c) On the angle
(d) None of these
The figure formed by two rays with the same initial point is called
(a) a ray
(b) a line
(c) an angle
(d) none of these
An angle measuring 180deg is called
(a) a complete angle
(b) a reflex angle
(c) a straight angle
(d) none of this
An angle measuring 90deg is called
(a) a straight angle
(b) a right angle
(c) a complete angle
(d) a reflex angle
An angle measuring 91deg is
(a) an acute angle
(b) an obtuse angle
(c) a reflex angle
An angle measuring 270deg is
(a) an obtuse angle
(b) an acute angle
The measure of the straight angle is
(a) 90deg
(b) 150deg
(c) 180deg
(d) 360deg
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