Answer:
20.6 cm (im pretty sure lol)
Step-by-step explanation:
sine rule:
(ab = x)
13.5/sin41 = x/sin90
13.5sin90/sin41 = x
x = 20.57741667
ab = 20.6cm
10
you wright all the numbers that multiply by each other that get the number and you see what the greatest number is( it takes time but when you get older you'll see it is good to do work now).
4
4-2
v = b
hope this helps