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CBSE Class 10 Answered

if a,band c are the sides of a right triangle where c is the hypoteneus , prove that the radius of the circle which touches the sides of the triangle is given by r= a+b-c /2
Asked by mkhandelwal | 01 Dec, 2015, 05:16: PM
answered-by-expert Expert Answer
 
   C o n s i d e r space t h e space f o l l o w i n g space f i g u r e.
H e r e comma space O space i s space t h e space i n c e n t r e space o f space t h e space t r i a n g l e. space T h u s comma space apostrophe r apostrophe space i s space t h e space i n r a d i u s space o f space t h e space c i r c l e.
space M u l t i p l y space t h e space n u m e r a t o r space a n d space t h e space d e n o m i n a t o r space b y space left parenthesis a plus b space minus space c right parenthesis comma space w e space h a v e comma
 
Answered by Vimala Ramamurthy | 02 Dec, 2015, 10:21: AM

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CBSE 10 - Maths
in the given figure a triangle abc is drawn to circumscribe a circle of radius 3 cm such that the segment bd and dc are respectively of length 6 and 9 cm if the area of traingle abc is 54cm2 then find side ab and ac
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Asked by jennyy | 26 Mar, 2022, 08:41: PM
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CBSE 10 - Maths
prime factorisation
Asked by amikasangma080 | 11 Oct, 2021, 06:14: PM
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CBSE 10 - Maths
prove that the tangent at any point of a circle is perpendicular to the radius through the point of contact
Asked by muskanmahek2411 | 08 Oct, 2021, 10:48: PM
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CBSE 10 - Maths
radious of circle is
Asked by anishasheoran372 | 13 Jul, 2021, 09:33: AM
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CBSE 10 - Maths
A tangent PQ at a point P on a circle of radius 5cm meets a line through the centre O at a point such that OQ=13cm. Find the length of PQ.
Asked by anushkasingh260805 | 20 Dec, 2020, 07:22: PM
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CBSE 10 - Maths
Prove that the lengths of tangents drawn from an external point to a circle are equal. *
Asked by anjalirajp004 | 22 Sep, 2020, 08:17: AM
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CBSE 10 - Maths
The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. The radius of the circle is
Asked by rashikediadelhi | 21 Sep, 2020, 09:02: AM
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CBSE 10 - Maths
From any point on the common chord of two intersecting circles, tangents be drawn to thecircles, prove that they are equal. 
Asked by prasutally | 26 May, 2019, 08:23: AM
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CBSE 10 - Maths
please answer these questions
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Asked by prasutally | 26 May, 2019, 08:22: AM
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CBSE 10 - Maths
A tangent PA is drawn fron an external point P to a circle of radius 3 square root of 2cm such that the distance of the point P from O is 6cm.Find yhe value ofangle A p o. 
Asked by kamatshantanu | 08 May, 2019, 11:39: AM
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