9. Suatu segitiga siku-siku memiliki panjang hipotenusa 17 cm dan panjang salah satu sisi tegaknya adalah 15 cm . Panjang sisi tegak lainnya adalah __ A. 6cm C. 12cm B. 8cm D. 16cm

B

This is a question relating to the Pythagorean theorem, which, in any right-angle triangle, states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides. So we are given a right-angled triangle, where the hypotenuse is 17 cm and one side is 15 cm. We need to find the length of the other side, which we normally denote as b. From the Pythagorean theorem we know: 17² = 15² + b². If we solve this equation for b, we will find the length in cf the missing side of the triangle.