Advertisements
Advertisements
प्रश्न
Draw circle with diameter: 8.4 cm
In above case, measure the length of the radius of the circle drawn.
Advertisements
उत्तर
AB is the diameter of circle
i.e. AB = 8.4 cm
and OA is the radius of a circle
`= 1/2 "of diameter" = 8.4/2 = 4.2` cm
i.e., OA = OB = 4.2 cm.
APPEARS IN
संबंधित प्रश्न
In Figure 1, common tangents AB and CD to the two circles with centres 01and 02 intersect at E. Prove that AB = CD.
Prove that there is one and only one tangent at any point on the circumference of a circle.
The perimeter (in cm) of a square circumscribing a circle of radius a cm, is
In a cyclic quadrilateral ABCD, if m ∠A = 3 (m ∠C). Find m ∠A.
Find the length of the chord of a circle in the following when:
Radius is 1. 7cm and the distance from the centre is 1.5 cm
In the following figure, OABC is a square. A circle is drawn with O as centre which meets OC at P and OA at Q.
Prove that:
( i ) ΔOPA ≅ ΔOQC
( ii ) ΔBPC ≅ ΔBQA
Use the figure given below to fill in the blank:
AB is a ______ of the circle.
In a right triangle ABC in which ∠B = 90°, a circle is drawn with AB as diameter intersecting the hypotenuse AC and P. Prove that the tangent to the circle at P bisects BC.
In the following figure, ∠OAB = 30º and ∠OCB = 57º. Find ∠BOC and ∠AOC.
A circle of radius 3 cm with centre O and a point L outside the circle is drawn, such that OL = 7 cm. From the point L, construct a pair of tangents to the circle. Justify LM and LN are the two tangents.
