A piece of wall art is comprised of mirrors in the shapes of squares, rectangles, circles, and triangles. One of the triangles is in the shape of a right triangle and has one leg length of 3 inches and another leg length of 7 inches. What is the perimeter of the specified mirror piece, round your answer to the nearest tenth

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

sorry i got nothing

step-by-step explanation:

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