English

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. - Mathematics

Advertisements
Advertisements

Question

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. 

Sum

Solution

Steps of Construction: 

(i) Draw line AB = S cm 

(ii) At B, draw an arc with radius 6 cm 

(iii) On the arc cut AC = 4.5 cm. 

(iv) Join AC and BC. 

(v) Draw perpendicular bisectors of AB and BC, which meet at O. 

(vi) With O as centre and radius equal to the distance between O and the vertex of the triangle, draw a circle to pass through alI the three vertices of the triangle. (vii) The circle drawn is the required circle. 

shaalaa.com
  Is there an error in this question or solution?
Chapter 18: Constructions - Exercise 18.1

APPEARS IN

Frank Mathematics - Part 2 [English] Class 10 ICSE
Chapter 18 Constructions
Exercise 18.1 | Q 3

RELATED QUESTIONS

Using ruler and compasses only,

  1. Construct triangle ABC, having given BC = 7 cm, AB – AC = 1 cm and ∠ABC = 45°.
  2. Inscribe a circle in the ΔABC constructed in (i) above. Measure its radius.

Perpendicular bisectors of the sides AB and AC of a triangle ABC meet at O.

  1. What do you call the point O?
  2. What is the relation between the distances OA, OB and OC?
  3. Does the perpendicular bisector of BC pass through O?

Contruct 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 incricle.


Draw a circle of radius 4.5 cm. Take a point Pon its circumference. Construct a tangent to the circle at P without using the centre. 


Perpendicular bisectors of the sides AB and AC of a triangle ABC meet at O.

What is the relation between the distances OA, OB and OC?


Construct a triangle ABC in which AB = 5 cm, BC = 6.8 cm and median AD = 4.4 cm. Draw incircle of this triangle.


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.


Construct a Δ ABC 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.


Use ruler and compasses only for this question:
(i) Construct A ABC, where AB = 3.5 cm, BC = 6 cm and ∠ ABC = 60°.
(ii) Construct the locus of points inside the triangle which are equidistant from BA and BC.
(iii) Construct the locus of points inside the triangle which are equidistant from B and C.
(iv) Mark the point P which is equidistant from AB, BC, and also equidistant from B and C. Measure and record the length of PB.


Construct a ΔABC with base BC = 3.5 cm, vertical angle ∠ BAC = 45°, and median through the vertex A is 3.5 cm. Write also the steps of construction.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×