In the right triangle, find the length of the side not given. Give an exact answer and an approximation to three decimal places. b=4, c = √√22 The exact value of a is (Type an exact answer, using radicals as needed) The approximate value of a is (Round to three decimal places as needed)

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Fill in the blanks with either "increases," "decreases," or "stays the same." When we shear a right triangle into an obtuse triangle, the base of the triangle _____ . When we shear a right triangle into an obtuse triangle, the height of the triangle _____ . When we shear a right triangle into an obtuse triangle, the area of the triangle _____ . When we shear a right triangle into an obtuse triangle, the perimeter of the triangle _____ .