Lisa has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area of the polygon. Be sure to show all your work and explain your answer. +20 pts HELP RIGHT AWAY THX

200+18+90=308 your welcome

Step-by-step explanation:

The big triangle is 200 20x20=400 divided by 2=200

The small triangle is 18 6x6=32 divided by 2=18

The rectangle is 90 6x30=180 divided by 2=90

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}