Using cosine, we can find the hypotenuse by using the formula below;
hypotenuse = adjacent / cos ∅
Using cosine, the hypotenuse side can be solved as follows:
cosine ∅ = adjacent / hypotenuse
cross multiply
hypotenuse cos ∅ = adjacent
divide both sides by cos ∅
hypotenuse cos ∅ / cos ∅ = adjacent / cos ∅
Therefore,
hypotenuse = adjacent / cos ∅
learn more on cosines here: https://brainly.com/question/10657732?referrer=searchResults