Answer:
The length of BC is 13.2
Step-by-step explanation:
In a ∆ ABC,
m∠A = 90°, AB = 11 mm and CA = 7.3 mm.
Now, by Pythagoras Theorem
(AB)² + (CA)² = (BC)²
(11)² + (7.3)² = (BC)²
121 + 53.3 = (BC)²
174.3 = (BC)²
(BC)² = 174.3
BC = √174.3
BC = 13.202 ≈ 13.2
Thus, The length of BC is 13.2
-TheUnknownScientist
