Checking and further securing understanding of Pythagoras' theorem

12 questions

1. 14^2= ___
2. Izzy has used her calculator to find the square root of 648. Which of these are correct for the given degree of accuracy?
3. What type of triangle is this?
4. If a square has an edge length of 19 cm, then its area is ___ \text{ cm}^2.
5. A square has an area of 1024\text{ cm}^2. What is the edge length of the square?
6. A square has an area of 1369\text{ m}^2. What is the perimeter of this square?
7. The hypotenuse is the __________ edge of a right-angled triangle and is always opposite the right angle.
8. Match the squares with the correct area.
9. Given that Pythagoras’ theorem states that the sum of the squares of the two shorter sides of a right-angled triangle is equal to the square of its longest side (the hypotenuse), a = ...
10. Pythagoras' theorem as a formula is c^2=a^2+b^2, where c is the hypotenuse. Which of the following are correct rearrangements of the formula?
11. Work out the length of x.
12. Work out the length of x.

License: OGL