Find the area, in square units, of triangle ABC plotted below.

Area of ΔABC = 10 square units

Step-by-step explanation:

Distance between the two points and is represented by,

d =

Length of AB =

                      =

                      =

Length of CD =

                      =

                      =

Area of a triangle ABC will be represented by the formula,

Area =

        =

        =

        = 10 square units

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80