Question

the points (2,4),(4,-2),(2,1)are
A) collinear
B) form a equilateral triangle
C) form a right angled triangle
D) form a isosceles triangle
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Answer 1

APPLY DISTANCE FORMULA AND THEN FIND YOUR ANSWER.

IF THE SUM OF TWO SMALL SIDES IS FORMING THIRD SIDE AFTER APPLYING DISTANCE FORMULA THEN THE POINTS ARE COLLINEAR.

IF ALL SIDES OF TRIANGLE ARE EQUAL AFTER APPLYING DISTANCE FORMULA THEN IT IS EQILATERAL TRIANGLE.

IF YOU FIND THE PYTHAGORAS THEOREM
THEN IT IS RIGHT ANGLED TRIANGLE.(CONVERSE OF PYTHAGORAS THEOREM)

IF YOU FIND ANY TWO SIDES OF A TRIANGLE ARE EQUAL AFTER APPLYING DISTANCE FORMULA THEN IT IS ISOSCELES TRIANGLE.

HOPE IT HELPS YOU.