Answer:
Step-by-step explanation:
Triangle ABC is a right angle triangle which is made up of 2 right angle triangles.
To determine y, we would apply Pythagoras theorem which is expressed as
Hypotenuse² = opposite side² + adjacent side². Therefore
136² = y² + 120²
18496 = y² + 14400
y² = 18496 - 14400 = 4096
y = √4096 = 64
To determine z,
255² = z² + 120²
65025 = z² + 14400
z² = 65025 - 14400 = 50625
z = √50625 = 225
