Since you didn't provide the choices, I can only give you some help. Then, you can select the correct choices.
The converse of the Pythagorean Theorem is when the square of the longest side of a triangle is equal to the sum of the squares of the two other sides for a triangle ABC with sides of a, b, c, then triangle ABC is a right triangle.
Say you were solving 27 + 19. If you were planning on using the friendly numbers strategy, you'd look at the first <span>addend, 27, and determine that</span> the closest "friendly number" here is thirty, which you'd get by adding 3. From there, you can jump to the next friendly number, forty, by adding another 10. So far you'd've added 13, and you'd need another 6 for that too add up to 19, your second addend. After adding 3, 10, and 6 to 27, you'd find your sum, or "final answer"- 46.
I hope this was what you were looking for!
Answer: The formula is (b1 + b2)h+PH
Step-by-step explanation: