If in triangle ABC sin2A+sin2B+sin2C=2 then the triangle is options are below?
- right angled but may not be isosceles
- equilateral
- right angled and isosceles
- isosceles but may not be right angled
- right angled but may not be isosceles
- equilateral
- right angled and isosceles
- isosceles but may not be right angled
1 Answer
Aug 5, 2018
Given
So any of
If
And then
So
Hence