Webb7 maj 2024 · Best answer Let O be the centre of the concentric circle of radii 4 cm and 3 cm respectively. Let AB be a chord of the larger circle touching the smaller circle at P. Then AP = PB and OP ⊥ AB Applying Pythagoras theorem in OPA, we have OA2 = OP2 + AP2 ⇒ 16 = 9 + AP2 ⇒ AP2 = 7 ⇒ AP = √7 cm ∴ AB = 2AP = 2√7 cm +2 votes WebbSection-C 11 Construct two concentric circles of radii 3cm and 7cm. Draw two tangents to the 4 smaller circle from a point P which lies on the bigger circle. OR Draw a pair of tangents to a circle of radius 6cm which are inclined to each other at an angle of 600. Also find the length of the tangent. To Buy Recommended Term 2 Book Based On This ...
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Webb19 maj 2024 · Three circles with radii of 2 cm, 3 cm and 5 cm, respectively are on the same plane. If the centers of the three circles are all on the same line and each circle is tangent to at least one of the other two circles, then what is the shortest possible distance, in cm, between the center of the largest circle and the center of the smallest circle? Webb9 PA and PB are the tangents drawn to a circle with centre O. If PA= 6 cm and APB=600, then find the length of the chord AB. 6 cm 3 10 3The sum of the squares of three positive numbers that are consecutive multiples of 5 is 725. Find the three numbers. Section-C 11 Construct two concentric circles of radii 3cm and 7cm. Draw two tangents to the diamond encrusted inhaler
Three circles with radii 4, 5, 6cm respectively are tangent to each ...
Webb3 apr. 2024 · Hint: According to the question we have to find the length of direct common tangent to the two circles will be when the circles of radii 2 and 3 cm touch each other externally. So, first of all we have to draw a diagram from the given circles and the direct common tangent which is as given below: WebbSolution: Given, the radii of two concentric circles are 4 cm and 5 cm. We have to find the length of each chord of one circle which is tangent to the other circle. Consider two concentric circles. OA = 4 cm OB = 5 cm From the figure, OA BC In triangle OAB, The triangle OAB is a right triangle with A at right angle. By pythagorean theorem, WebbThe radii of the two circles are 4 cm and 3 cm respectively. The diameter of the circle having an area equal to the sum of the areas of the two circles (in cm) is _____. CBSE English Medium Class 10. Question Papers 900. Textbook Solutions 32580. MCQ Online Mock Tests 12. Important ... circular candle stand with vase