Question

Please help me out and give as much detail as you can and also provide the WORKING OUT. thanks

Answer 1

Answer:

suppose ∆abc is a right triangle then bc is the hypotenuse (since it is the longest then the ∆ is right angle at a)

now applying pythagorous theorem

bc²=ab²+ac²

19²=15²+8²

361=225+64

361 not equal to 289

thus, ∆abc is not a right triangle.

Step-by-step explanation:

lhs should be equal to rhs if it is a right triangle. or in other words if it is right triangle it should agree with the pythagorous theorem