What is the area of a trapezoid with bases of lengths 6 cm and 10 cm, and a height of 5 cm?
What is the volume of a cone with a radius of 3 cm and a height of 4 cm? (Use \( \pi \approx 3.14 \))
Find the length of the diagonal of a rectangle with length 8 cm and width 6 cm.
What is the surface area of a sphere with a radius of 5 cm? (Use \( \pi \approx 3.14 \))
In the figure below, a square ABCD is inscribed in a circle. If the length of arc AB is 4\(\pi\) unit, what is the diameter of the circle?