Question

"For this triangle, which rule can be used directly: sine, cosine, area of a triangle, or Pythagoras’ theorem?

Please specify the appropriate rule that can be applied to this triangle."

Answer 1

The appropriate rule that can be applied to this triangle is the Pythagorean theorem.

Step-by-step explanation:

In this case, the appropriate rule that can be applied to this triangle is the Pythagoras' theorem.

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

For example, if we have a right triangle with one side measuring 3 units and another side measuring 4 units, we can use the Pythagorean theorem to find the length of the hypotenuse as follows:

3² + 4² = c²
9 + 16 = c²
25 = c²
c = 5 units

Therefore, in this triangle, we can use the Pythagorean theorem to find the length of the hypotenuse.