Advertisements
Advertisements
प्रश्न
Draw a circle of radius 6 cm. In the circle, draw a chord AB = 6 cm.
(i) If O is the center of the circle, join OA and OB.
(ii) Assign a special name to ∆AOB
(iii) Write the measure of angle AOB.
Advertisements
उत्तर
(i)
(ii) Δ AOB is equilateral triangle.
(iii) By measurement ∠AOB = 60°
APPEARS IN
संबंधित प्रश्न
In fig. XP and XQ are tangents from X to the circle with centre O. R is a point on the circle. Prove that, XA + AR = XB + BR.
In the given figure, PO⊥QO. The tangents to the circle at P and Q intersect at a point T. Prove that PQ and OT are right bisector of each other.
Fill in the blank
Circles having the same centre and different radii are called ...........................circles.
true or false
The degree measure of an arc is the complement of the central angle containing the arc.
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 a cyclic quadrilateral ABCD, if m ∠A = 3 (m ∠C). Find m ∠A.
If O is the centre of a circle of radius r and AB is a chord of the circle at a distance r/2 from O, then ∠BAO =
In the given figure, common tangents PQ and RS to two circles intersect at A. Prove that PQ = RS.
Draw a circle of radius 3.6 cm. In the circle, draw a chord AB = 5 cm. Now shade the minor segment of the circle.
If the angle between two radii of a circle is 130°, then the angle between the tangents at the ends of the radii is ______
