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CBSE Class 10 Answered

Prove  that the radius of the circle will be the length of the perpendicular from O on any side. (Triangle and incircle )
Asked by sucharitasahoo1 | 11 Oct, 2017, 08:44: PM
answered-by-expert Expert Answer
 
begin mathsize 16px style Let space ABC space be space straight a space triangle. Draw space angle space bisectors space of space any space two space angles comma space say space angle straight B space and space angle straight C. Suppose space they space intersect space at space straight I. Then comma space as space straight I space lies space on space the space angle space bisectors space of space angle straight B space and space angle straight C comma space straight a space circle space can space be space drawn space with centre space straight O space to space touch space AB comma space BC space and space AC comma The space radius space of space the space circle space will space be space the space length space of space the space perpendicular space from space straight I space on space any space side. This space circle space is space called space the space incircle space of space triangle ABC space and space its space centre space is space called space the space incentre space of space triangle ABC. end style
Answered by Rashmi Khot | 20 Dec, 2017, 05:04: PM

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CBSE 10 - Maths
Draw a triangle ABC with sides BC= 6cm, AB= 5cm, and angle ABC =60. Then construct a triangle whose sides are 3/4 of the corresponding sides of the triangle ABC.
Asked by sangyaswarupa | 20 May, 2021, 09:59: AM
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CBSE 10 - Maths
Construct a triangle of sides 4,5,6cm and then a triangle similar to it whose sides are 2/3 of the corresponding sides of the first triangle  
Asked by gaganarora2018 | 01 Dec, 2019, 09:00: AM
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CBSE 10 - Maths
Construct a Δ ABC in which AB = 6 cm, ∠A = 30° and ∠B = 60°, Construct another ΔAB’C’ similar to ΔABC with base AB’ = 8 cm.
Asked by jaiacharya18 | 18 Feb, 2019, 01:35: AM
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CBSE 10 - Maths
Draw a line segment AB = 6 cm. Divide it externally in the ratio 3: 5
Asked by Topperlearning User | 27 Jul, 2017, 01:45: PM
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CBSE 10 - Maths
Draw a line segment AB = 6 cm. Divide it externally in the ratio 5: 3. Justify the construction.
Asked by Topperlearning User | 27 Jul, 2017, 01:45: PM
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CBSE 10 - Maths
Divide a line segment of length 7 cm into three parts in the proportion 2: 3: 4.
Asked by Topperlearning User | 27 Jul, 2017, 01:45: PM
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CBSE 10 - Maths
Divide a line segment of length 9 cm internally in the ratio 4: 3. Also, give the justification.
Asked by Topperlearning User | 27 Jul, 2017, 01:45: PM
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CBSE 10 - Maths
Divide a line segment of length 8 cm in the ratio 3:2.
Asked by Topperlearning User | 13 Dec, 2013, 02:59: AM
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CBSE 10 - Maths
Construct a right angled triangle whose hypotenuse measures 6cm and the length of one of whose sides containing the right angle is 4 cm.
Asked by Topperlearning User | 27 Jul, 2017, 01:45: PM
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CBSE 10 - Maths
Construct a triangle similar to a given triangle ABC such that each of its sides is two thirds of the corresponding sides of triangle ABC. It is given that BC= 6 cm, angle B = 50oand angle C = 60o.
Asked by Topperlearning User | 27 Jul, 2017, 01:45: PM
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