Advertisements
Advertisements
प्रश्न
Construct a triangle ABC with AB = 4.2 cm, BC = 6 cm and AC = 5cm. Construct the circumcircle of the triangle drawn.
Advertisements
उत्तर
Steps of Construction:

(i) Draw ∆ABC in which AB = 4.2 cm. BC = 6 cm. and AC = 5 cm.
(ii) Draw the perpendicular bisectors of any two sides of the triangle. Let these intersect at O.
(iii) Taking O as center and OA or OB or OC as radius draw a circle.
This circle will pass through vertices A, B and C.
APPEARS IN
संबंधित प्रश्न
A circle is inscribed in a ΔABC touching AB, BC and AC at P, Q and R respectively. If AB = 10 cm, AR = 7 cm and CR = 5 cm, find the length of BC.

Two concentric circles are of diameters 30 cm and 18 cm. Find the length of the chord of the larger circle which touches the smaller circle.
Use the figure given below to fill in the blank:
If the length of RS is 5 cm, the length of PQ = _______

Draw circle with the radii given below.
4 cm
Find the diameter of the circle
Radius = 10 cm
Three circles touch each other externally. The distance between their centres is 5 cm, 6 cm, and 7 cm. Find the radii of the circles.
A point P is 13 cm from the centre of the circle. The length of the tangent drawn from P to the circle is 12cm. Find the radius of the circle.
Let s denote the semi-perimeter of a triangle ABC in which BC = a, CA = b, AB = c. If a circle touches the sides BC, CA, AB at D, E, F, respectively, prove that BD = s – b.
In the following figure, O is the centre of the circle. Name a chord, which is not the diameter of the circle.

From the figure, identify a sector.

