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Mathematics 8 Online
Oneofus:

Find the total area of the solid figure.

Oneofus:

http://prntscr.com/f8y1e2

KjSaif:

The answer is 90. 3 x 5 x 6 = 90 unless there's a formula. :)

Oneofus:

i need a total area tho

KjSaif:

total area=2(a*b+a*c+b*c) volume=a*b*c

KjSaif:

so it's not 90 give me a sec

KjSaif:

3*5 + 3*6 + 6*5 + 3*6 + 3*5 + 6*5 = 2(3*5 + 3*6 + 6*5) = 2 (15 + 18 + 30) = 2*63 = 126

KjSaif:

Answer is B : 126

KjSaif:

:)

KjSaif:

hope you understood :)

Ultrilliam:

closed due to answered.

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