Please answer this question now

Mathematics

2 answers:

yaroslaw [1]2 years ago

7 0

Answer:

396 yd^2

Step-by-step explanation:

8X12=96

(96/2)*2=9

10*10=100

100*3=300

300+96=396

Gekata [30.6K]2 years ago

7 0

Answer:

416 yd^2

Step-by-step explanation:

The formula for the surface area of a triangular prism is

$A=2\sqrt{\frac{a+b+c}{2}(\frac{a+b+c}{2}-a)(\frac{a+b+c}{2}-b)(\frac{a+b+c}{2}-c)}+(a+b+c)h$

where h is the height (10), and a, b and c are the base sides (10, 10, 12).

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3 years ago

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worty [1.4K]

Answer:

$\large\boxed{4.44=444\%,\ \dfrac{3}{5}=60\%}$

Step-by-step explanation:

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