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Three semicircles each of diameter 3 cm, a circle of diameter 4.5 cm and a semicircle of radius 4.5 cm are drawn in the given figure. Find the area of the shaded region. Mathematics CBSE class 10 20171 AnswerIn the given figure, O is centre of the circle with AC = 24 cm, AB = 7 cm and ∠BOD = 90°. Find the area of the shaded region. Mathematics CBSE class 10 20171 AnswerIn the given figure, two concentric circles with centre O have radii 21 cm and 42 cm. If ∠AOB = 60°, find the area of the shaded region.Mathematics CBSE class 10 20171 AnswerConsider a disc rotating in the horizontal plane with a constant angular speed about its centre O. The disc has a shaded region on one side of the diameter and an unshaded region on the other side a shown in the figure. When the disc is in the orientation as shown, two pebbles P and Q are simultaneously projected at an angle towards R. The velocity of projection is in the y-z plane and is same for both pebbles with respect to the disc. Assume that (i) they land back on the disc before the disc has completed 1/8 rotation, (ii) their range is less than half the disc radius, and (iii) remains constant throughout. Then - jee main 2012 physics 1 AnswerIf the circumference of a circle exceeds the diameter by pi units, then find the diameter of the circle. Mathematics CBSE class 101 AnswerIn the Fig PQ is a tangent at a point C to a circle with centre O. if AB is a diameter and ∠CAB = 30°, find ∠PCA. Mathematics CBSE class 10 20161 AnswerIf the angle between two tangents drawn from an external point P to a circle of radius a and centre O, is 60°, then find the length of OP. Mathematics CBSE class 10 20151 AnswerFind the total surface area of the vessel. Mathematics CBSE class 10 20131 AnswerFind the internal diameter of the pipe, from the given below details Mathematics CBSE class 10 20151 AnswerA toy is in the form of a cone of base radius 3.5 c m mounted on a hemisphere of base diameter 7 cm. If the total height of the toy is 15 .5 cm, find the total surface area of the toy. CBSE Mathematics1 AnswerFind the radius of the circle if the area is 49? CBSE class 9 Mathematics1 AnswerIn a circle of radius 21 cm, an arc subtends an angle of 60 degree at the centre. Find: Mathematics CBSE class 10 20132 AnswerIf the radius of the circular field is 7 cm .Find the circumference and the area of the circle ? CBSE class 9 mathematics1 AnswerThe diameter of a recessed ring was measured by using two spherical balls of diameter d2 =60 mm and d1=40 mm as shown in the figure. (-Gate mechanical engineering 2014)1 AnswerThe radius of the circle (in cm) is:Mathematics CBSE class 10 20131 AnswerA tapered circular rod of diameter varying from 20 mm to 10 mm is connected to another uniform circular rod of diameter 10 mm as shown in the following figure. Both bars are made of same material with the modulus of elasticity, E = 2x105 MPa. When subjected to a load P = 30π kN, the deflection at point A is _______________ mm. - gate civil 2017 1 AnswerFind how long it would take for each pipe to fill the pool separately, if the pipe of smaller diameter takes 10 hours more than the pipe of larger diameter to fill the pool. Mathematics CBSE class 10 20151 AnswerThe curved surface area of a right circular cylinder of height 14 cm is 88cm2. Find the diameter of the base of the cylinder. CBSE class 9 Mathematics1 AnswerThe diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m2. CBSE class 9 Mathematics 1 AnswerA 10 mm deep cylindrical cup with diameter of 15mm is drawn from a circular blank. Neglecting the variation in the sheet thickness, the diameter (upto 2 decimal points accuracy) of the blank is _________ mm.1 Answer