हिंदी

In triangle ABC, ∠ABC = 90°, AB = 6 cm, BC = 7.2 cm and BD is perpendicular to side AC. Draw circumcircle of triangle BDC and then state the length of the radius of this circumcircle drawn. - Mathematics

Advertisements
Advertisements

प्रश्न

In triangle ABC, ∠ABC = 90°, AB = 6 cm, BC = 7.2 cm and BD is perpendicular to side AC. Draw circumcircle of triangle BDC and then state the length of the radius of this circumcircle drawn.

ज्यामितीय चित्र

उत्तर

Steps for construction :

  1. Draw BC = 7.2 cm.
  2. Draw an angle ABC = 90° using compass.
  3. Draw BD perpendicular to AC using a compass.
  4. Join BD.
  5. Draw perpendicular bisectors of BD and BC which intersect at I, where I is the circumcentre of a circle.
  6. Draw circumcircle using circumcentre I. we get the radius of a circle is 3.6 cm.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 19: Constructions (Circles) - Exercise 19 [पृष्ठ २९३]

APPEARS IN

सेलिना Mathematics [English] Class 10 ICSE
अध्याय 19 Constructions (Circles)
Exercise 19 | Q 28 | पृष्ठ २९३

संबंधित प्रश्न

Use ruler and compasses only for the following questions. All constructions lines and arcs must be clearly shown

Construct a  ABC in which BC = 6.5 cm,  ABC = 60°, AB = 5 cm.


In the figure given below 'O' is the centre of the circle. If QR = OP and ∠ORP = 20°. Find the value of 'x' giving reasons


Construct a ΔABC with BC = 6.5 cm, AB = 5.5 cm, AC = 5 cm. Construct the incircle of the triangle. Measure and record the radius of the incircle.


Construct a triangle ABC in which base BC = 6 cm, AB = 5.5 cm and ∠ABC = 120°.

Construct a circle circumscribing the triangle ABC.

Draw a cyclic quadrilateral ABCD so that D is equidistant from B and C.


Using a ruler and compasses only: 

  1. Construct a triangle ABC with the following data: AB = 3.5 cm, BC = 6 cm and ∠ABC = 120°.
  2. In the same diagram, draw a circle with BC as diameter. Find a point P on the circumference of the circle which is equidistant from AB and BC. 
  3. Measure ∠BCP.

Constuct a triangle ABC with AB = 5.5 cm, AC = 6 cm and ∠BAC = 105°. Hence: 

  1. Construct the locus of point equdistant from BA and BC.
  2. Construct the locus of points equidistant from B and C.
  3. Mark the point which satisfies the above two loci as P. Measure and write the length of PC.

Using ruler and compasses only, construct a triangle ABC in which AB=S cm, BC=6 cm and CA=4.5 cm. Construct a circle passing through A, Band c. 


Draw a circle with radius 3 cm and inscribe an equilateral triangle in it.


Using ruler and compass only, construct a triangle ABC such that AB = 5 cm, ABC = 75°, and the radius of the circumcircle of triangle ABC is 3.5 cm. On the same diagram, construct a circle, touching AB at its middle point and also touching the side AC.


Construct a triangle whose sides are 4.4 cm, 5.2 cm, and 7.1 cm. Construct its circumcircle. Write also the steps of construction.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×