Page 108 - Senior Math

1) If the area of a triangle is 20 cm2, ∠𝐴 = 40o, and 𝑏 = 8 cm, solve the triangle.
2) Find the measure of the smallest angle in a triangle with sides having lengths 7, 12, and 13.
3) A regular polygon with 180 sides is inscribed in a circle with radius 1. Find the area of the polygon.
4) The diagonals of a parallelogram have lengths 8 and 14 and they meet at a 60o angle. Find the area and perimeter of the parallelogram.
5) If fencing costs $2.50 per foot, how much will it cost to buy fencing to go around the plot of land shown below?
50 ft
128o
30 ft
107