SAT Math: Geometry and Trigonometry

A circle has a radius of $43$ meters. What is the area, in square meters, of the circle?

A rectangle has an area of $63$ square meters and a length of $9$ meters. What is the width, in meters, of the rectangle?

Two identical rectangular prisms each have a height of $90$ centimeters $(\text{cm})$. The base of each prism is a square, and the surface area of each prism is $K \text{ cm}^2$. If the prisms are glued together along a square base, the resulting prism has a surface area of $\frac{92}{47}K \text{ cm}^2$. What is the side length, in $\text{cm}$, of each square base?

In the figure, line $m$ is parallel to line $n$, and line $k$ intersects both lines. Which of the following statements is true?

Note: Figure not drawn to scale.