Answer:
A
Explanation:
cosθ = 8/10
θ = arcCos(8/10)
θ =36.87
cot(36.87) = 8/x
1.33 = 8/x
x1.33 = 8
x = 6
Therefore , A is the correct Answer
a
6+10+8=24=iscolecles triangle
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