Question

look at attachment

Answer 1

if a^2 = b^2 + c^2 then the angle must be 90 degrees or pi / 2
3pi/7 is less that this so this should tell you the correct option

Answer 2

if a is less than pi/2 then a^2 is less than b^2 + c^2
and if its more then a^2 > b^2 + c^2

Answer 3

Well. This is a dumb question. The sum of any two sides of a triangle must be greater than the third side. If a+b>c then a^2+b^2 >c^2 since we are dealing with sides of a triangle and all numbers are positive.

Answer 4

So clearly, b and c are both true.

Answer 5

you are only able to choose one

Answer 6

That's why I say it is a dumb question.

Answer 7

oh:/

Answer 8

It could be a right triangle.