If the product of two consecutive even number is 224 find the number​

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

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?