Suppose that triangle HIJ is isosceles with base overline IJ . Suppose also that m angle H=(3x+55)degrees and m angle I=(5x-9)degrees Find the degree measure of each angle in the triangle .

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?