You are standing 25 feet away from a building. Given that you are 5.7 feet tall, you find the angle of elevation to the top of the building with the clinometer app on your phone to be 69degrees . Find the total height of the building to the nearest hundredth of a foot.

The distance around a circle 65.94 inches using pi to be 3.14. What is the diameter?

A Ferris wheel is 20 meters in diameter and boarded from a platform that is 2 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 4 minutes. How many minutes of the ride are spent higher than 21 meters above the ground? Give your answer correct to the nearest second. minutes and seconds

The original sprinkler head at a home could spray in a circular area that had a radius of 5 feet. After installing a new sprinkler head the radius of the watered area is now 7 feet. What is the change in the area of grass that is watered? round to the nearest hundredth.