Ineed on 27 and 28. an explanation would be nice.

The formula for midpoint is

(, )

Essentially you are taking the mean of the end points

27.

In this case:

^^^Plug in these number into the formula given above...

(, )

(, )

Simplify the fractions:

(2, 1)

^^^This is the coordinate of the midpoint

28.

In this case:

^^^Plug in these number into the formula given above...

(, )

(, )

Simplify the fractions:

(-3, 0)

^^^This is the coordinate of the midpoint

Hope this helped!

~Just a girl in love with Shawn Mendes

27)  (2,1)

28)  (-3,0)

Step-by-step explanation:

To find the midpoint, you average your x's to get the x-coordinate and you average your y's to get the y-coordinate.

On number 27:

The x's are 0 and 4. The average of 0 and 4 is (0+4)/2 = 4/2 = 2.

The y's are 1 and 1. The average of 1 and 1 is (1+1)/2  =  2/2   =1.

The midpoint for number 27 is (2,1).

On number 28:

The x's are -3 and -3. The average of -3 and -3 is (-3+(-3))/2  =-6/2 = -3.

The y's are 4 and -4.  The average of 4 and -4 is (4+(-4))/2  =0/2   =0.

The midpoint for number 28 is (-3,0).

sas (side angle side)

aa (angle angle)

sss(side side side)

sas find two sides with an angle in between

aa is finding two angles and the third will add up to 180

sss find all sides

step-by-step explanation: