हिंदी

AB = 6 cm, ∠BAQ = 50°. Draw a circle passing through A and B so that AQ is the tangent to the circle - Geometry Mathematics 2

Advertisements
Advertisements

प्रश्न

AB = 6 cm, ∠BAQ = 50°. Draw a circle passing through A and B so that AQ is the tangent to the circle

आकृति

उत्तर


Analysis: As shown in the figure,

C is the centre of the required circle.

∴ ∠QAC = 90°    ......[Tangent theorem]

∴ Centre of the circle must be on ray AC and it must be equidistant from point A and point B.

∴ The centre of the circle, i.e., point C, is the point of intersection of ray AC and perpendicular bisector of seg AB.

Steps of construction:

  1. Draw seg AB of 6 cm.
  2. Draw ray AQ such that ∠BAQ = 50°
  3. Draw ray AD such that ∠QAD = 90°
  4. Draw perpendicular bisector of seg AB, intersecting ray AD at point C.
  5. With centre C, draw a circle with radius AC.
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Geometric Constructions - Q.5

संबंधित प्रश्न

Select the correct alternative for the following question.

The number of tangents that can be drawn to a circle at a point on the circle is ............... .


Draw a circle with centre P. Draw an arc AB of 100° measure. Draw tangents to the circle at point A and point B.


Complete the following activity to draw a tangent to a circle at a point on the circle.
                 Draw a circle of radius 2.2 cm with O as centre.

                                                ↓
                 Take any point P on the circle and draw ray OP.

                                                ↓
                 Draw a perpendicular line to the ray at point P.

                                                ↓
                         Name the perpendilcular line as l

                               l is the tangent at point P.


Choose the correct alternative:

______ number of tangents can be drawn to a circle from the point outside the circle


Draw a circle of radius 3 cm and draw a tangent to the circle from point P on the circle


Draw a circle and take any point P on the circle. Draw ray OP
Draw perpendicular to ray OP from point P

To draw tangents to the circle from the endpoints of the diameter of the circle.

Construct a circle with center O. Draw any diameter AB of it
 ↓
Draw ray OA and ray OB
 ↓
Construct perpendicular to ray OA from point A
 ↓
Construct perpendicular to Ray OB from point B

Draw a circle of radius 3 cm. Take any point K on it. Draw a tangent to the circle from point K without using center of the circle.


Do the following activity to draw tangents to the circle without using the center of the circle.

  1. Draw a circle with radius 3.5 cm and take any point C on it.
  2. Draw chord CB and an inscribed angle CAB.
  3. With the center A and any convenient radius, draw an arc intersecting the sides of angle BAC in points M and N.
  4. Using the same radius, draw an arc intersecting the chord CB at point R.
  5. Taking the radius equal to d(MN) and center R, draw an arc intersecting the arc drawn in the previous step. Let D be the point of intersection of these arcs. Draw line CD. Line CD is the required tangent to the circle.

Draw a circle with center O and radius 3.4. Draw a chord MN of length 5.7 cm in a circle. Draw tangents to the circle from point M and N


Draw a circle with a radius of 3.5 cm. Take the point K anywhere on the circle. Draw a tangent to the circle from K (without using the center of the circle)


Draw a circle of radius 4.2 cm. Draw arc PQ measuring 120°. Draw a tangent to the circle from point P and point Q


Draw a circle of radius 3 cm and draw chord XY 5 cm long. Draw the tangent of the circle passing through point X and point Y (without using the center of the circle)


Draw a circle with radius 3 cm. Construct a square such that each of its side will touch the circle from outside


Take point P and Q and draw a circle passing through them. Draw a tangent AB to the circle without using the centre of the circle.


Draw any circle with radius greater than 1.8 cm and less than 3 cm. Draw a chord AB 3.6 cm long in this circle. Tangent to the circle passing through A and B without using the center of the circle


Draw a circle of radius 3.2 cm and centre 'O'. Take any point P on it. Draw tangent to the circle through point P using the centre of the circle.


Draw a circle of radius 4 cm. Draw a point 8 cm away from its centre and construct a pair of tangents.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×