Question

PLEASE HELP ASAP!!!!!!!

Answer 1

Answer:

40 cm² = B

178,127514 ≈ LA

218,127514 ≈ SA

Step-by-step explanation:

First and foremost, since we were not given a height, to find the height, take one-third of the area base [area base in this case is ws, since it is a rectangular base]:$\frac{1}{3}(40) = 13 \frac{1}{3}$

This is your height.

Now, to find the lateral area, we use this formula:

$l \sqrt{(\frac{w}{2})^{2} + {h}^{2}} + w \sqrt{( \frac{l}{2})^{2} + {h}^{2}} = L. A.$

Plugging these numbers into this formula will give you an approximate value of 178,127514.

Then you add the lateral area to the base area to get your surface area:

$40 + 178,127514 = 218,127514$

I am joyous to assist you anytime.