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12. If one side of the cube measures 6 cm, what is its surface area?
13. What is the surface area of a rectangular prism if its length is 7 cm, its width is 4 cm and its height is 5 cm?​


Sagot :

Answer:

12. 6 × 6 × 6 × 6 × 6 × 6

13. 7 × 5 × 4

Step-by-step explanation:

12. 46,656

13.

7cm - length

4cm - width

5cm - height

Sa=2(l×w) + 2(w×h) + (h×l)

2(l×w)

Just multiply the 7 × 4

=28

+2(w×h)

just multiply the 4 × 5

=20

+2(h×l)

just multiply the 5 × 7

=35

Then Add all of the answer

28+20+35 = 83 cm

Here's the answer

Thank you

correct if im wrong

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