Formula of the area of triangle A=(1/2)a*b*sin(C) a, b - sides C- an angle between sides a and b. Probably, this question means that you need to know sin of the angle.
The distance from the park to the grocery store is 0.9 mile.
Ezra runs 8 tenths of that distance and walks the rest of the way. The distance
ezra runs can be solve by multiplying 8/10 to the total distance.