Question

10. The sides of certain triangle are (a - 1)cm, 2.√a cm, (a+1) Determine whether the triangle
is a right triangle.​

Answer 1

Step-by-step explanation:

Solution explained below. Let ABC be a triangle with AB= (a-1) cm, BC= 2√a cm and CA= (a+1) cm. From the above solution it is proved that triangle ABC is right angled at B which means it is a right angled triangle