An isosceles triangle has a height of 12 cm and an area of 28 square cm. How many cm's are in the perimeter of the triangle? Express your answer in simplest radical form.
Area = 1/2 * x * 12 total area = 2 * 1/2 x * 12 = x * 12
area = 28
12x = 28
x = 28/12 = 7/3
hyp^2 = 12^2 + (7/3)^2
= 144 + 49/9
hyp = sqrt (1345/9)
then circumference = 2 * sqrt ( 1345/9) + 2 * 7/3 you can finish ....
