Need learning 3rd grade perimeters n areas

Perimeter is all sides added up.

Area is sometimes length times width with four sided figures like a rectangle or a square and for like triangles it is base times height.

Area is when you multiply 2 sides to get the area. For example, the length of the grass rug should be 4 feet. The width should also be 8 feet. Then you can multiply those 2 numbers to get an area of 32 ft. Perimeter is when you add the sides together. Like so, 4ft for length 8ft for width, place another number thats the same length and with on their parallel sides add them together which gives  you a total of 24!

Step-by-step explanation: Hope this helps! Good luck.

c is the final answer! : )

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.