5.Find the degree measure of the angle subtended at the centre of circle of radius 100cm by an are of length 22cm .
In exercise 3.2 in 11 maths samacheer kalvi
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Answer:
Solution:
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.2 3
Answer:
step by step explanation:-
We know that in a circle of radius r unit,
if an arc of length l unit subtends an angle θ radian
if an arc of length l unit subtends an angle θ radian at the centre, then
Therefore, forr = 100 cm, l = 22 cm, we have
Therefore, forr = 100 cm, l = 22 cm, we have0=22/100 radian= 180/π×22/100 degree
Therefore, forr = 100 cm, l = 22 cm, we have0=22/100 radian= 180/π×22/100 degree180×7×22/22×100degree
Therefore, forr = 100 cm, l = 22 cm, we have0=22/100 radian= 180/π×22/100 degree180×7×22/22×100degree 126/10 degree
Therefore, forr = 100 cm, l = 22 cm, we have0=22/100 radian= 180/π×22/100 degree180×7×22/22×100degree 126/10 degree12 3/5degree=12°36'
Therefore, forr = 100 cm, l = 22 cm, we have0=22/100 radian= 180/π×22/100 degree180×7×22/22×100degree 126/10 degree12 3/5degree=12°36'[1°=60']
Thus, the required angle is 12°36'
explanation:-
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