Let T: R^2âR^2 be the linear transformation which first reflects v in R^2 about the y-axis, and then rotates the resulting vector counterclockwise by 135 degrees. Describe (in a few sentences) a method to determine the matrix A for this transformation.

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?