Complete solution Pythagoras’ Theorem and Trigonometry 1. The Residential Infrastructure area includes a rectangular plaza with dimensions of 60 meters by 80 meters. Calculate the diagonal length of the plaza. 2. A monument is planned in the Commercial Zones with a base of 20 meters. If the monument's shadow is 25 meters long, determine the height of the monument. 3. The Green Spaces project envisions a triangular garden with sides of 30 meters, 40 meters, and 50 meters. Determine the area of this triangular garden.