Determine what shape is formed for the given coordinates for ABCD, and then find the perimeter and area as an exact value and rounded to the nearest tenth.
(help)

Part 1) The shape is a trapezoid

Part 2) The perimeter is   or approximately  

Part 3) The area is

Step-by-step explanation:

step 1

Plot the figure to better understand the problem

we have

A(-28,2),B(-21,-22),C(27,-8),D(-4,9)

using a graphing tool

The shape is a trapezoid

see the attached figure

step 2

Find the perimeter

we know that

The perimeter of the trapezoid is equal to

the formula to calculate the distance between two points is equal to

Find the distance AB

we have

A(-28,2),B(-21,-22)

substitute in the formula

Find the distance BC

we have

B(-21,-22),C(27,-8)

substitute in the formula

Find the distance CD

we have

C(27,-8),D(-4,9)

substitute in the formula

Find the distance AD

we have

A(-28,2),D(-4,9)

substitute in the formula

Find the perimeter

simplify

----> exact value

therefore

The perimeter is   or approximately  

step 3

Find the area

The area of trapezoid is equal to

substitute the given values

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!