Advertisements
Advertisements
प्रश्न
Find the radius of the circle
Diameter = 30 cm
उत्तर
Diameter = 30 cm
Radius = `"diameter"/2`
= `30/2`
= 15 cm
APPEARS IN
संबंधित प्रश्न
In Fig., if AB = AC, prove that BE = EC
If PA and PB are tangents from an outside point P. such that PA = 10 cm and ∠APB = 60°. Find the length of chord AB.
In Fig. 1, the sides AB, BC and CA of a triangle ABC, touch a circle at P, Q and R respectively. If PA = 4 cm, BP = 3 cm and AC = 11 cm, then the length of BC (in cm) is ?
In Fig. 8.79, PQ is a tangent from an external point P to a circle with centre O and OP cuts the circle at T and QOR is a diameter. If ∠POR = 130° and S is a point on the circle, find ∠1 + ∠2.
Draw two circles of different radii. How many points these circles can have in common? What is the maximum number of common points?
Draw circle with the radii given below.
3 cm
The length of tangent from an external point on a circle is always greater than the radius of the circle.
If an isosceles triangle ABC, in which AB = AC = 6 cm, is inscribed in a circle of radius 9 cm, find the area of the triangle.
Say true or false:
Two diameters of a circle will necessarily intersect.
AB is a chord of a circle with centre O. AOC is diameter of circle, AT is a tangent at A.
Write answers of the following questions:
- Draw the figure using the given information.
- Find the measures of ∠CAT and ∠ABC with reasons.
- Whether ∠CAT and ∠ABC are congruent? Justify your answer.
