Question

If the co-ordinates of the vertices of a triangle ABC are (0,0), (cos α , sin α), (− sin α , cosα), then find

Answer 1

Answer:

ABC is a rectangled triangle.

Step-by-step explanation:

by the given coordinates

AB= 1 , BC= √2, CA= 1

since 1,√2 and 1 are triplets.

therefore ABC is a rectangled triangle