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CBSE Class 10 Answered

Two sectors of the same circle have central angles x and 2x, then the ratio of their perimeter is
Asked by Trisha Gupta | 06 Oct, 2021, 09:24: PM
answered-by-expert Expert Answer
Perimeter space equals space 2 cross times radius space plus length space of space arc fraction numerator 2 straight r plus begin display style straight x over 360 end style cross times 2 πr over denominator 2 straight r plus fraction numerator 2 straight x over denominator 360 end fraction cross times 2 πr end fraction equals fraction numerator 2 straight r open parentheses 1 plus straight x over 360 cross times straight pi close parentheses over denominator 2 straight r open parentheses 1 plus fraction numerator 2 straight x over denominator 360 end fraction cross times straight pi close parentheses end fraction equals fraction numerator 1 plus straight x over 360 cross times straight pi over denominator 1 plus fraction numerator 2 straight x over denominator 360 end fraction cross times straight pi end fraction equals fraction numerator 360 plus πx over denominator 360 plus 2 πx end fraction
Answered by Arun | 07 Oct, 2021, 11:09: AM

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CBSE 10 - Maths
(SinA/1+CosA + 1+cosA/sinA) (sinA/1-cosA - 1-cosA/sinA)=4cosecAcotA    
Asked by prasadshruti9999 | 03 Jun, 2023, 10:05: AM
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CBSE 10 - Maths
cot2 30-2cos2 60-3/4sec2 45-4sec2 30
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Asked by Akhandp457 | 29 May, 2023, 09:06: PM
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CBSE 10 - Maths
find the zeroes of the quadratic polynomial and verify the relationship between the zeroes and the coffiecient 4u+8u
Asked by dimpaldihingia2 | 24 May, 2023, 06:10: PM
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CBSE 10 - Maths
if sin theta = root3/2, find the value of all t- ratios
Asked by akhilthainuan | 22 May, 2023, 02:11: PM
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CBSE 10 - Maths
If α and β are tge zeros of the polynomial x^2 - 6x + k and 3α + 2β=20 , then the value of k is
Asked by ruchipandey20071978 | 21 May, 2023, 10:00: PM
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CBSE 10 - Maths
If one of the zeros of the quadratic polynomial (k - 1)x^2 + kx + 1 is -3, then the value of k
Asked by ruchipandey20071978 | 21 May, 2023, 09:57: PM
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CBSE 10 - Maths
If the sum of the zeors of the polynomial f (x)=2x^3 - 3kx^2 +4x - 5 is 6 , then the value of k is
Asked by ruchipandey20071978 | 21 May, 2023, 05:32: PM
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CBSE 10 - Maths
If two zeros of x^3 + x^2 - 5x - 5 are √5 and - √5, then its third zero is
Asked by ruchipandey20071978 | 21 May, 2023, 05:29: PM
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CBSE 10 - Maths
The value of k for which the system of equestions kx-y=2 and 6x-2y=3 has a uniqe solution is..
Asked by ruchipandey20071978 | 11 May, 2023, 06:55: AM
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CBSE 10 - Maths
a regular polygon has 20 sides. how many triangles can be drawn by using the vertices but not using the sides?
Asked by gavhanenisha0310 | 09 May, 2023, 04:10: PM
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