Answer:
Explanation:
a.
Base=2+5=7
height=4+2=6
area=7×6=42 sq. units
eq. of base is y=-2
eq. of upper side is y=4
slope of left side is
y-(-2)=(0-(-2))/(-3-(-2))(x-(-2))
y+2=2/(-1) (x+2)
y+2=-2(x+2)
y+2=-2x-4
y=-2x-6
any line parallel to it is
y=-2x+a
(4,0) lies on it.
0=-2×4+a
a=8
eq. of right hand side is
y=-2x+8
b.
base=-3-(-7)=4
height=5-(-2)=7
area=4×7=28 sq. units.
eq. of base is
y=-2
eq. of upper side is
y=5
eq. of left side is
![y-y1=(y2-y1)/(x2-x1)(x-x1)\\y-(-2)=\frac {5-(-2)}{0-(-7)}(x-(-7)}\\y+2=1(x+7)\\y=x+7-2\\y=x+5\\any~line~parallel~to~above~line~is \\y=x+k\\point~(0,1) ~lies~on~it.\\so~1=0+k\\k=1\\eq. of ~lie~on~the~right~side~is\\y=x+1](https://img.qammunity.org/2021/formulas/mathematics/high-school/r36c5444kiv8cnaii183ebemtv2zm8qwzs.png)