The radii of two concentric circles are 20 cm and 25 cm. A straight line PQRS intersects the larger circle at the points P and S and intersects the smaller circle at the points Q and R. If QR = 32 cm, then the length (in cm.) of PS is:(Approx.)
In the right triangle OQM. OM = √ (20²- 16²) = √144 = 12cm In the right triangle OMS. Let RS = x cm So, (25) ² = (12) ² + (x + 16) ² (x + 16) ² = 625 – 144 = 481 x + 16 = 21.9 x=21.9 - 16 =5.9 x = 5.9 So, PS = 2 × (16 + 5.9) = 43.8 cm
How old was Carlos Sainz when he made history by winning the Dakar Rally for the fourth time in 2024, marking him as the oldest winner of a gruelling race?
First edition of India-Africa Army Chiefs’ Conclave organised on the sidelines of 2nd Africa-India Joint Exercise ‘AFINDEX’ in which ci...
Which ancient city in Uttar Pradesh is associated with the birth of Jain Tirthankara Parshvanatha?
The causes of tides are?
National Food Laboratory of FSSAI inaugurated the Food testing Laboratory in ______ state of India?
_________ bank has launched ‘skill loans’ in association with the Additional Skill Acquisition Programme (ASAP).
Match the following lists.
-Constable/1716956330-55.JPG)
Which country was NOT one of the founding members of the 'BIMSTEC’?
Which ancient city in Uttar Pradesh is associated with Gautama Buddha's first sermon?
Which of the following aquatic animals does not have gills?
