Answer:
X =
, Y = 3 , Z = 10
Explanation:
using Pythagoras' identity in all 3 right triangles
X² = 1² + 1² = 1 + 1 = 2 ( take square root of both sides )
X =
middle triangle
Y² = 1² + X² = 1 + (
)² = 1 + 2 = 3
triangle on right
Z² = 1² + Y² = 1 + 3² = 1 + 9 = 10