Question

Math Help!

Answer 1

1b

Answer 2

the 2 one is
63in2

Answer 3

3 one is 45cm2

Answer 4

@TheSmartOne

Answer 5

anyone?

Answer 6

The first question is correct

Answer 7

I'm checking them, one at a time :P

Answer 8

okay :)

Answer 9

#2 is wrong
#3 is correct
#4 you haven't attempted :P

Answer 10

ok i will attempt #4

Answer 11

#4 it is 4 times bigger? i jus dont know the terminoligy with the abc ;-;

Answer 12

@Directrix

Answer 13

@Ms-Brains @Mehek14

Answer 14

@jhonyy9

Answer 15

the last one idk i think it is it dobules or it is six times bigger

Answer 16

do you know?

Answer 17

@Ms-Brains

Answer 18

@YoungStudier

Answer 19

@sleepyjess

Answer 20

Surface area = 2(ab + ac + bc)

Now, what happens when you double each value?

Surface area = 2((2a)(2b) + (2a)(2c) + (2b)(2c))

Simplifying that, you get

2(4ab + 4ac + 4bc)

So you are correct!