Question

Calculate the length of unknown side:
X
13
12 ​

Answer 1

Answer:

Value of x is 5

Step-by-step explanation:

Apply Pythagoras theorem in the given triangle ::

→ hypotenuse² = base² + perpendicular²

→ (13)² = (12)² + (x)²

→ 169 = 144 + x²

→ 169 - 144 = x²

→ 25 = x²

→ √25 = x

→ ±25 = x

Since side of triangle can't be negative, 25 is the correct answer.