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CBSE Class 9 Answered

Plz solve the 18th question. 
Asked by ahujarajesh11 | 22 Jan, 2016, 06:09: PM
answered-by-expert Expert Answer
begin mathsize 11px style The space correct space relation space should space be space RP equals 2 OS In space traingle space QPR comma space angle straight P equals 90 degree Given space that space OS perpendicular PQ space Hence comma space OS vertical line vertical line RP straight O space is space the space midpoint space of space QR space left parenthesis QR space is space straight a space diamter space and space straight O space is space the space center. right parenthesis straight S space is space the space midpoint space of space PQ space left parenthesis perpendicular space drawn space from space center space to space straight a space chord space bisects space the space chord right parenthesis Hence comma space OS space is space the space line space joining space the space midpoints space of space two space sides space QR space and space QP. Hence comma space it apostrophe straight s space length space will space be space half space of space the space third space side space left parenthesis Property right parenthesis OS equals 1 half RP rightwards double arrow RP equals 2 OS space left parenthesis Proved right parenthesis end style
Answered by satyajit samal | 24 Jan, 2016, 11:28: AM

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CBSE 9 - Maths
if the diameter AD of a circle is 34 cm and the length of a chord AB is 30 cm. what is the distance of AB from the ce
Asked by indu.suresh1220 | 27 Dec, 2023, 11:12: PM
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CBSE 9 - Maths
prove that of all chords of circle through a given point within it, the chord which is bisected at that point is the smallest
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CBSE 9 - Maths
if two circles intersect at two points prove that their centres lie in the perpendicular bisector of the common chord
Asked by rameshsonkar1234ramesh | 21 Dec, 2022, 11:03: PM
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CBSE 9 - Maths
AB is chord of a circle with centre O. Let P and T be two points on the circumpherence such that < APB # < ATB and < APB = 80 degree then what is the value of < ATB.
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Asked by sdmbotch1123 | 17 Dec, 2022, 09:39: PM
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CBSE 9 - Maths
prove that the median bisecting the hypotenuse of a right angled triangle is half of the hypotenuse
Asked by geetaradha8835 | 16 Dec, 2022, 07:59: PM
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CBSE 9 - Maths
solution
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Asked by rairai4971 | 11 Jun, 2022, 09:03: AM
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CBSE 9 - Maths
three girls Reshma Salma And Mandeep are playing a game by standing on a circle of radius 5 drawn in a park Reshma throws a ball to Salma Salma To mandip mandip to Reshma if the distance between Reshma and Salman and between Salman Mandeep 6 each what is the distance between Reshma Mandip
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CBSE 9 - Maths
Prove that equal chords of a circle subtend equal angles at the centre.
Asked by sangeetabharti123456789 | 22 Feb, 2022, 09:01: AM
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CBSE 9 - Maths
What is a tangent?
Asked by manognareddy.p28 | 25 Jul, 2021, 12:52: PM
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CBSE 9 - Maths
Prove that the angle at the centre of a circle is twice the angle at the remaining part of the circle.
Asked by Samidhaindulkar133 | 11 Mar, 2021, 04:03: PM
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