Surface area = 2(wl + hl + hw) = 2wl + 2hl + 2hw
Conditions:
base length is shrunk by a factor of 2/3
width is quadrupled
height is cut in half.
l ⇒ 2l/3 w ⇒ 4w ; h ⇒ h/2
SA = <span>2wl + 2hl + 2hw
</span>SA = 2(4w)(2l/3) + 2(h/2)(2l/3) + 2(h/2)(4w)
SA = (16wl/3) + 4hl/6 + 8hw/2
Simplify:
SA = 16/3 wl + 2/3 hl + 4hw Choice C.
I think you just multiply all the numbers
the answer is 8, -1
the picture attached is the steps
D=V [2-(-3)]^2+ [3-(-3)]^2=V 5^2+6^2=V 25+36
d=V61