Question

Will mark brainliest.

Answer 1

Answer:

I couldnt figure out the irregular polygons, so im sorry

Step-by-step explanation:

2.

$A=wl=7*2=14in^2\\P=2(l+w)=2*(2+7)=18in$

3.

$P=8a=8*3=24cm$

4.

$A=wl=40*97=3880mm^2\\P=2(l+w)=2*(97+40)=27mm$

5.

$A=wl=4*13=52cm^2\\P=2(l+w)=2*(13+4)=34cm$

6.

$A=wl=3*8=24cm^2\\A=wl=2*6=12cm^2\\=36cm^2\\P=2(l+w)=2·(8+3)=22cm\\P=2(l+w)=2*(2+6)=16cm\\=38cm$

8.

$A=wl=4*9=36cm^2\\A=wl=8*3=24cm^2\\=60cm^2\\P=2(l+w)=2*(4+9)=26cm\\P=2(l+w)=2*(8+3)=22cm\\=48cm$

9.

$A=wl=7*11=77cm^2\\A=wl=2*5=10cm^2\\=87cm^2\\P=2(l+w)=2*(7+11)=36cm\\P=2(l+w)=2*(2+5)=14cm\\=50cm$