Question

Can someone help me here:

Answer 1

@welshfella

Answer 2

first calculate the length of side b using the pythagoras theorem
b^2 = c^2 - a^2

Answer 3

then cot = b/a

Answer 4

* cot A = b/a

Answer 5

dude show me

Answer 6

\[b ^{2}+3^{2}=51\]

Answer 7

find b

Answer 8

I got B

Answer 9

@welshfella

Answer 10

that's right