Help with three pre algebra questions 10points? I need the answers to 2,4 and 6

Question

 I need the answers to 2,4 and 6

Answer 1

From the figure the coordinates of A = (1, 2), B(9, 8) and C (6, 4)

Calculate the distance between two points by using fallowing formula

2) Distance between A and B

Let the coordinates are

Distance between AB = 10 units.

4) Distance between A and C

Let the coordinates are

= 5.385

Distance between AC = 5.4 units.

6)The sides of right angle traingle are 8, 10, 14

From the pythagoras theorem

Longest side of right angle traingle is hypotenuse.

The length of hypotenuse = 14, other sides are 8 and 14.

Therefore, they are not sides of right angle traingle .