Question

a side of rhombus ABCD measures 100 feet. the measures of 12 years ago

Answer 1

start by drawing the diagram



so you know 2 sides and the included angle

looks like the law of cosines is needed to find the length of AC

\[b^2 = a^2 + c^2 - 2ac \times \cos(B)\]

hope this helps

Answer 2

thank you! you're the best! :)

Answer 3

oops the angle should be

\[110^o 20'\]

missed the 20 minutes...