It seems like you are referring to the Pythagorean Theorem, which is a fundamental principle in geometry used to find the length of a side in a right-angled triangle.
The Pythagorean theorem formula is:
a² + b² = c²
where:
- a and b are the legs (shorter sides),
- c is the hypotenuse (the longest side opposite the right angle).
Given values 3.1mm and 1.6mm, you can label these as a and b, and solve for A, which presumably is the hypotenuse c.
Step 1: Square the given lengths
- a² = (3.1mm)² = 9.61 mm²
- b² = (1.6mm)² = 2.56 mm²
Step 2: Add the squares
a² + b² = 9.61 + 2.56 = 12.17 mm²
Step 3: Take the square root to find A (hypotenuse)
A = √12.17 ≈ 3.49 mm
Answer: The length A is approximately 3.49 mm.
If you intended different variables or a different theorem, please clarify! But with the information provided, this is how you would solve it using the Pythagorean theorem.