TRIG

please help two questions h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 5 2 9 6 7 1 5 7 also A surveillance satellite circles Earht at a height of h miles above the surface. Suppose that d is the distance, in miles, on the...

cos θ = 0.7677 (a) the nearest 0.01° (b) the nearest 1'

Consider the following. θ = 30°, d = 20 m (a) Find the length of the arc that subtends the given central angle θ on a circle of diameter d. (b) Find the area A of the sector determined by θ.

Find a for ΔABC where β = 67.083°, b = 0.775, c = 0.188. Round your answer to three decimal places.

A triangular plot of land has sides of lengths 410 feet, 360 feet, and 170 feet. Approximate the smallest angle (in degrees) between the sides. (Round your answer to the nearest whole number.)