Question

The surface area of a rectangular prism is 150 cm². If all the sides are tripled, what will the new surface area be?

Answer 1

Area of rectangle = length * breadth

Answer 2

So, length * breadth =150

Answer 3

but if all the sides are tripled... what do i do?

Answer 4

Now, find
New Area = 3*length * 3*breadth=9*length*breadth=9*150=

Answer 5

Got it?

Answer 6

oh yes thank you

Answer 7

uhh...surface area...not area...different formulas...

Answer 8

Welcome

Answer 9

Oh..... its a surface Ara

Answer 10

isnt it Surface Area = 2Lw + 2wh + 2Lh = 150cm²

Answer 11

Area

Answer 12

that's why people shouldn't race in replying

Answer 13

But same concept

Answer 14

go on..redeem yourself @sauravshakya

Answer 15

im going else where to find the answer. im noto going ot be used to sho whow smart people are. i just needed help.

Answer 16

2Lw + 2wh + 2Lh = 150cm²
2(lw+wh+lh)=150
iw+wh+lh=75

Answer 17

1.
2 wh + 2 wl + 2 lh = 150

2(wh + wl + lh) = 150 ===> (wh + wl + lh) = 75

triple:
2(9 wh +9 wl + 9lh) = 18 (wh + wl + lh) = 18*75 = 1,350

Answer 18

Yep