Which term can be use to describe a triangle that has no equal a)acute b)aquilateral c)isosceles d)right e)scalene

Scalene triange where no two sides have the same side a right does not necciarily have all sides different because you can have sides of 1 1 and squareroot of 2, the isosceles have by definition 2 sides the same and finally an acute the same as a right triangle can have two sides the same and i have never even heard of an aquilateral. I have howerver heard of an equilateral triangle which says by definition that all sides and angles the same

It would be 15 m how i got the answer: (20x20) + b^2 = (25x25)400 + b^2 = 625625-400=225square that and get 15hope this : )