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Which statement explains why 49 is a perfect square?
O
49 can be multiplied by 49.
49 is equal to 7 plus 7
49 is between 36 and 64.
49 is equal to 7 times 7
O

D. 49 is equal to 7 times 7

A square root is basically the opposite of a square. When you square something, you multiply that number by itself. Such as 25 being 5^2 since 5*5=25.

So when you square root, you find the number that multiplied by itself to get that number. For example, the square root of 36 is 6 since 6*6=36.

One unique triangle, because those angles add up to 180, and that's how many degrees there are in one triangle.