Question

I REALLY NEED HELP!
Two 3D shapes have volumes in the ratio 5:7
The surface area of the smaller shape is 90cm”. What is the surface area of the larger shape?​

Answer 1

Answer:

126cm

Step-by-step explanation:

if they are in a ratio then the 5 is the smallest volume and 7 is bigger

So then you do

90÷5=18

Since 5 was multipled by 18 you do it to the other side also

18x7=126

The end ratio would be

90:126

which is also equivalent to

5:7