Triangle J K M is shown. Angle J M K is a right angle. The length of hypotenuse K J is a, the length of J M is b, and the length of K M is c.
Given right triangle JKM, which correctly describes the locations of the sides in relation to ∠J?

a is the hypotenuse, b is adjacent, c is opposite
a is the hypotenuse, b is opposite, c is adjacent
a is adjacent, b is opposite, c is the hypotenuse
a is opposite, b is the hypotenuse, c is adjacent

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?