A, B and C represent three eagles nests. The bearing of B from A is 050°.
The bearing of C from B is 120°.
The bearing of C from A is 105º.
The distance from A to B is 15km.
Calculate the distance from A to C.

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Step-by-step explanation:

C) 18 square units

Step-by-step explanation:

There are many ways to go about solving this.  You could divide it into two triangles with a middle section.  But it might be easier just to count the squares:

whole squares = 12

half squares = 4 (which equals 2)

3/4 square = 4

1/4 squares = 4

(add the 3/4 and 1/4 squares to equal 4)

12+2+4=18