Question

Sasha's school is due west of her house and due south of her friend Nina's house. The distance between the school and Nina's house is 8 kilometers and the straight-line distance between Sasha's house and Nina's house is 10 kilometers. How far is Sasha's house from school?

Answer 1

6 km

Explanation:

These three places form a right angle triangle

10² = 8² + x²

100 = 64 + x²

x² = 36

x = 6