Find the missing length of the triangle.
9 mm
15 mm
W
b=
mm

Answer:
b = 12mm
Step-by-step explanation:
Using pythagoras theorem, you will be able to find the answer.
a² = b² + c²
15² = b² + 9²
b² = 15 ² - 9²
b² = 144
b = [tex]\sqrt{144}[/tex]
∴ b= 12mm