(Solved): 7. Two cables ( AB and AC ) are attached to the top of a flag pole (AD). Angle ABD is 40,AB is 1 ...

7. Two cables ( $\mathrm{AB}$ and $\mathrm{AC}$ ) are attached to the top of a flag pole (AD). Angle $\mathrm{ABD}$ is $40^{?},\mathrm{AB}$ is 10 feet and $\mathrm{AC}$ is 8 feet. p a) Find the distance $\mathrm{AD}$. b) Find the angle $\mathrm{ACD}$ c) Find the distance $\mathrm{BC}$ 8. A building foot print has shape shown below needs a foundation $15^{?}$ below grade. 8.A: Find the volume in ${\mathrm{yd}}^3$ of dirt that will be loose after excavation. Assume $30\%$ bulking after excavation (meaning the dirt takes up $30\%$ more space when lose than when packed into the ground). 8.B: How many 10 cy truck trips will be required to transport this dirt?