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3 years ago

Find the total surface area of the pyramids below

Mathematics

2 answers:

blsea [12.9K]3 years ago

6 0

Answer:

Step-by-step explanation:

Trava [24]3 years ago

3 0

It’s 600 ft because u did 10 x 10 = 100 100 x the hight that is 12 = 1200 1200/2= 600

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What is the surface area of the rectangular prism below?

Andrew [12]

Answer:

B ( 432 units^2)

Step-by-step explanation:

Total surface area= 2*(6*6)+ 4*(15*6)

There are 2 squares at each end of the same size so total area will be 2*(6*6)

If we look at the rectangles( bottom, top and the sides), we can see that all are of same dimensions and there are 4 of them so it's 4*(15*6)

In short, total surface area= 2*(6*6)+ 4*(15*6) = 432 units^2

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Answer:

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3 years ago

The vertices of a parallelogram are at (-9, 12), (-3, 12), (-5, 10), and (–11, 10). What is the perimeter of the parallelogram?

eduard

let point A has coordinates (-9;12),B(-3;12),C(-5;10) and D(-11;10).Then the vector AB={6;0}, BC={2;-2}, CD={6;0}, AD={2;-2} and their and the length of the vectors

$|AB| = |CD| = \sqrt{ {6}^{2} + {0}^{2} } = \sqrt{36} = 6 \\ |BC| = |AD| = \sqrt{ {2}^{2} + {( - 2)}^{2} } = \sqrt{8}$

$p = 6 + 6 + \sqrt{8} + \sqrt{8} = \\ = 12 + 2 \sqrt{8} = 17.66\approx18$

7 0

3 years ago

Pls help asap show work thank you so much

serious [3.7K]

I hope this helps. If you need another explanation just message me

4 0

3 years ago

PLEASE HELP ME THANK YOU

Julli [10]

Answer:

(1,4)

Step-by-step explanation:

When replacing X and Y with the values (1,4)

$1+3=4$ AND $-1+5=4$

Therefore, (1,4) is correct

5 0

3 years ago