Textbook Questions

11. A square has an area of 20cm 2

a) Use perfect squares to estimate the side length to 1 decimal.

Measure to the nearest tenth of a centimeter.

14. Alex is thinking of a number.

The number has a square that is between 7 and 8.

It is a multiple of 12

a) What number could he be thinking of?

b)Is there more than 1 answer? Explain.Page 100

15. Order these numbers from least to greatest.

7, square root of 46, 5.8, square root of 27, 6.3

7, square root of 46, 5.8, square root of 27, 6.3

Here's a video that may help:

Pythagoras Scribe Edit

1. Explain the Pythagorean relationship;

2. Solve for the missing side length.

3. Is this a right triangle? Prove it.

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