Answer: 1. A: 5^2 B: 12^2 C: 13^2
2. A: 25 cm B: 144cm C: 169 cm
3. See image
Explanation:
1/2: The equation of an area of a square is s^2 which means that you take the number given for here let’s use 5 and just square it so it would be equivalent to 5 * 5 which would equal 25. You would repeat this for every side.
3. This practice is equivalent to the Pythagorean theorem which is a^2 + b^2 = c^2. Where an and b are your side lengths of a right triangle and c is the hypotenuse which is going to be the side opposite of the right angle so in this case the C square.