To calculate the area of a triangle, you find the product of the base and height and then divide by two

If a || b and e || f , what if the value of y ?

What is the total surface area of this square pyramid?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .