The area of rhombus is 220 cm² and its perimeter is 44 cm find its altitude please not only answer I want please also gave me solution
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Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).