Answer:
15
Step-by-step explanation:

Here, 15 is not a square number so, 240 should be multiplied by 15 to make 240 as perfect square.
240* 15 = 3600
I think it is B maybe I’m pretty sure
Answer:
O 5 cm
Step-by-step explanation:
tan45 = 1 = 5/x
=> x = 5 cm