Question

I have two books rd sharma and rl arrora there is two different formula given for area of minor segment one is r2(θπ/180 - sinθ)/2 and r2(θπ/180 - sinθcosθ) /2 wch one sould i use and i donot want o find area of sector and segment thats why i want to know that and will you please upload some extra question of ts lesson

Answer 1

Hello and a very good afternoon
Alright coming to your question.

Both the formulas are absolutely right however both of these work under special conditions.

If you take the formula 

r² ( П ∅/ 180 - sin ∅)/2 works when the angle at the centre that is ∅ has the value less than or equal to 90°.

And if you take the other formula

r²(П∅ / 180° - sin∅cos∅)/2

works when the angle at the centre is more than 90° and less than or equal to 180°.

Hope this helps you !!
# Dhruvsh

Answer 2

Here is so many question.solve it