????????????????? !!!

Mathematics

1 answer:

loris [4]3 years ago

4 0

Answer:

340.8cm^2

Step-by-step explanation:

So surface area is basically the area of all the sides combined. And we know that the area of a triangle is 1/2bh, and for a rectangle it is LW. So there are three congruent rectangles, and one of those rectangle's area is 72 ( 6 x 12), so you can multiply that by 3 to find all three rectangles, which is 216. We also know that the two triangles are congruent. and the base is 12, and height is 10.4, so 12 x 10.4 is 124.8.

We take the total of the rectangles and the triangles to find the total surface area:

216 + 124.8 = 340.8cm^2

You might be interested in

Which relations are functions?

guapka [62]

Answer:

The 1st and 2nd graph are functions while the 3rd and 4th aren't.

Step-by-step explanation:

The first and second graph doesn't have more than one output for each input. The third and fourth graph isn't a function since there's more than one output for the same input given. If you do the vertical line test, then you'll know which one is a function and which one is not a function. Hope this helps :)

3 0

3 years ago

Please help me out ASAP

Nady [450]

Answer:

the answer is b

Step-by-step explanation:

3 0

2 years ago

Robert borrowed $750 from his parents. He promised to repay the loan by giving his parents at least $67 from his paycheck each w

madam [21]

i believe the answer is B

3 0

2 years ago

Read 2 more answers

alexa and rose read books that have the same number of pages. alexa's book is divided into 8 equal chapters. rose's book is divi

vekshin1

Alexa read 3/8 of her book and Rose read 3/6=1/2. Rose read more because her chapters are longer compared to Alexa and her book. Hope this helps, if you have questions feel free to ask.

6 0

3 years ago

Read 2 more answers

A stack of 12 bricks is 27 inches high. How high is each brick?

TiliK225 [7]

Answer: 2.25 inches

Step-by-step explanation:

27/12= 2.25

7 0

3 years ago