Question

Find volume and total surface area. I know this is a lot to ask but please explain the best you can I’ve been in the hospital for a while and now this corona virus no school thing is confusing me like crazy. Parents from another country so they don’t know much about math and we don’t have online school and emailing my teacher isn’t working well for some reason (Maybe she just doesn’t want to help me).

Answer 1

House 1 : Volume - 2250 Surface Area - 1050

House 2 : Volume - 2133.33 Surface Area - 1154.72

House 3 : Volume - 2222.43 Surface Area - 1422.49

Explanation:

House 1 : to find the volume, use the formula V = whl

• l - length - 15
• w - width - 15
• h - height - 10

(15)(10)(15) = 2250

to find the surface area, use the formula 'A=2(wl+hl+hw)'

• l - length - 15
• w - width - 15
• h - height - 10

2((15)(15)+(10)(15)+(10)(15)) = 1050

House 2 : to find the volume, use the formula V=lwh / 3

• l - length - 20
• w - width - 20
• h - height - 16
• then divide by 3

(20)(20)(16) / 3 = 2133.33

to find the surface area, use the formula 'A=lw+l(w2)2+h2+w(l2)2+h2

• l - length - 20
• w - width - 20
• h - height - 16

I can't write the expression out, but you get 1154.72

• I recommend that you look up the surface area formula of a pyramid so you can see the formula correctly

House 3 :

to find the volume, use the formula 'V=1/4 4h﹣a4+2(ab)2+2(ac)2b4+2(bc)-c4

use the numbers

• 20 - is the b value
• 16 - is the a value
• 14 - is the h value
• 24 - is the c value

You get 2222.43

There isn't a formula, but for the surface area, I got 1422.49