Advertisements
Advertisements
प्रश्न
The diameter of a circle is 12.6 cm. State, the length of its radius.
Advertisements
उत्तर
Diameter of the circle = 12.6 cm
∴Radius = `1/2` diameter = `1/2` x 12.6 cm = 6.3 cm
APPEARS IN
संबंधित प्रश्न
A chord of a circle of radius 10 em subtends a right angle at its centre. The length of the chord (in em) is
`(A) 5sqrt 2`
`(B) 10 sqrt2`
`(C)5/sqrt2`
`(D) 10sqrt 3`
In Fig. 8, O is the centre of a circle of radius 5 cm. T is a point such that OT = 13 cm and OT intersects circle at E. If AB is a tangent to the circle at E, find the length of AB, where TP and TQ are two tangents to the circle.
ABC is a right triangle, right angled at B. A circle is inscribed in it. The lengths of the two sides containing the right angle are 6 cm and 8 cm. Find the radius of the incircle.
Write True or False. Give reason for your answer.
Line segment joining the centre to any point on the circle is a radius of the circle.
Write True or False. Give reason for your answer.
A circle is a plane figure.
On a semi-circle with AB as diameter, a point C is taken, so that m (∠CAB) = 30°. Find m(∠ACB) and m (∠ABC).
In an equilateral triangle, prove that the centroid and center of the circum-circle (circumcentre) coincide.
Draw a circle of radius 4.8 cm and mark its center as P.
(i) Draw radii PA and PB such that ∠APB = 45°.
(ii) Shade the major sector of the circle
Find the diameter of the circle
Radius = 8 cm
C(O, r1) and C(O, r2) are two concentric circles with r1 > r2 AB is a chord of C(O, r1) touching C(O, r2) at C then ______
