The answer is found by multiplying length and width. This calculation gives you 450 square feet.
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Well, isn't that a lovely little question! To find the square footage of a rectangle, you simply multiply the length by the width. So, for a 15 feet by 30 feet space, you would have 450 square feet of room to create all sorts of beautiful things. Just imagine the happy little trees you could paint in that space!
30 square feet as 10 x 3 = 30
600 square feet
48 feet x 30 feet = 1440 square feet.
480 square feet.
30-ft x 20-ft = 600 square feet