(i): A triangle where all three sides are equal and the same.
(ii): A triangle where all three sides are unequal in length.
(iii): A triangle that has two sides of equal length.
(iv): A triangle where all three internal angles are acute(they measure less than 90 degrees.
(v): A triangle where all three internal angles are obtuse(measure above 90 degrees).
(vi): A triangle where one internal angle is a right angle(90 degrees).
Hope this helps
1.5 minutes = 90 second
The probability density function is

so the probability of interest is


Answer:
Midpoint....; (0,-6)
Step-by-step explanation:
Midpoint of the segment
= [(sum of x-coordinates) ÷ 2] , [(sum of y-coordinates) ÷ 2]
Midpoint = [( 3 + (-3))÷ 2 , (-5 + (-7))÷ 2]
Midpoint = ( 0/2 , -12/2 )
Midpoint = (0,-6)