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A contractor needs to install a 16-foot by 26 -foot by 8-foot-high footing for a bridge. The bottom of the footing is to be 10 feet below grade. The sides of excavation need to be sioped 1:1 (horizontal:vertical). A 2-foot spacing between the footing and the sides of the excavation must be provided to form the footing. Determine the volume of the excavation in cubic yard All answers can have up to 2 decimats All measurement unit in this section figures is in feet. This answer and following four answers are based on this question. This formula is for determining the excavation volume in cubic feet of pyramids at each corner. (A fB f xC f) /3= Total Volume of each pyramid located at each comer This formula is for determining the excavation volume in cubic feet of pyramids at each corner (AffBfCft)/3= Total volume of each pyramid located at each comer. What is the width in feet (not including the sioping sides of excavation)? 5 ( 2 points What is the length in feet (not including the sloping sides of excavation)? Typeyour answer- 2 points What is the total volume of the sloping sides of excavation in CY fincluding two sides in the width and two sides in the lengeth of the l? Type vour answer.i. 2 points What is the total volume in C.Y, of excavation at the site