Determine the side length of a square with an area of 196 cm².
I used prime factorization to answer this:
The side length of a square with an area of 196 cm squared is 14 cm².
Page 85: Questions 3, 7, 12 and 14.
3. The square root of 36 is 6 because out of all the factors, 6 multiplied by itself is the only one that equalled to 36.
7. a) 2x3x7 = 42 ; It is not a perfect square.
b) 13x13 = 169 ; It is a perfect square.
c) 2x2x2x2x2x2x2x2 = 256 ; It is a perfect square.
12. Determine the square of each number:
a) 3x3 = 9
b) 18x18 = 324
14. Determine the side length of a square with an area of 900cm²
900 ÷ 30 = 30 ; 30x30 = 900cm²
The side length of a square with an area of 900cm² is 30 cm.
Here is a video on square roots.
Here is a link on square roots.
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Great job Marie. I like how you added a video,link and pictures.Keep it up
ReplyDelete