please answer with solution plss thanks!

Activity 3. Solve the following problems with complete solution. 1. Determine the angle of elevation of the sun when a m flagpole casts a shadow of 10 m. 2. At a point 25 m away, the angle of elevation of a building is 65". a. How tall is the building? b. How far is the observer from the top of the building 3. A tree is broken by the wind. The top touches the ground 15 ft. from the base. It makes an angle with the ground measuring 30". How tall was the tree before it was broken? 4. A person is standing 40 ft. from a flagpole and can see the top of the pole at 35" angle of elevation. The person's eye level is 4 ft. from the ground. What is the height of the flagpole