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प्रश्न
Construct the 75° angles and verify by measuring it by a protractor.
उत्तर
The below given steps will be followed to construct an angle of 75°.
(1) Take the given ray PQ. Draw an arc of some radius taking point P as its centre, which intersects PQ at R.
(2) Taking R as centre and with the same radius as before, draw an arc intersecting the previously drawn arc at S.
(3) Taking S as centre and with the same radius as before, draw an arc intersecting the arc at T (see figure).
(4) Taking S and T as centre, draw an arc of same radius to intersect each other at U.
(5) Join PU. Let it intersect the arc at V. Taking S and V as centre, draw arcs with radius more than 1/2SV. Let those intersect each other at W. Join PW which is the required ray making 75° with the given ray PQ.
The angle so formed can be measured with the help of a protractor. It comes to be 75º.
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संबंधित प्रश्न
Construct the angles of the following measurement:- 30°
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Construct an equilateral triangle, given its side and justify the construction.
Draw a line segment AB of length 5.8 cm. Draw the perpendicular bisector of this line
segment.
Draw a circle with centre at point O and radius 5 cm. Draw its chord AB, draw the
perpendicular bisector of line segment AB. Does it pass through the centre of the circle?
Draw a circle with centre at point O. Draw its two chords AB and CD such that AB is not
parallel to CD. Draw the perpendicular bisectors of AB and CD. At what point do they
intersect?
Construct the angle of the measurement:
1 . 75°
Construct the angle of the measurement:
1 . 105°
Construct a rectangle whose adjacent sides are of lengths 5 cm and 3.5 cm.
Construct the following and give justification:
A triangle if its perimeter is 10.4 cm and two angles are 45° and 120°.
