Question

The points (0,8/3), (1,3) and (82,30) are vertices of
(A) an obtuse angled triangle
(B) an acute angled triangle
(C) a right angled triangle
SD) none of these​

Answer 1

Answer:

Let P ( 0, 8/3 ) ,Q (1 , 3) and R ( 82 , 30 )

Slope of QP

$\tan( \alpha ) = \frac{ \frac{8}{3} - 3}{0 - 1} = \frac{1}{3}$

Again slope of QR

$\tan( \beta ) = \frac{30 - 3}{82 - 1} = \frac{27}{81} = \frac{1}{3}$

So both lines are parallel

Answer 2

Answer:

no triangle can be formed..