Ellen had 2 ¼ metres of ribbon. If she used ⅓ of this, how much did she use?
2 answers:
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Answer:
The exact value of cot(∅) is 2.5
Step-by-step explanation:
The picture of the question in the attached figure
we know that
An isosceles triangle has two equal sides and two equal interior angles
In his problem
In the right triangle ABD
---> adjacent side angle ∅ divided by the opposite side angle ∅
we have
The base of the isosceles triangle is five times the height
so
substitute
