A zoo is building a new giraffe exhibit and needs to fence an outdoor triangular area, with the barn forming one side of the triangle. The maintenance department has only 128ft of fencing in stock. If one of the sides of outdoor pen is 77ft and angle makes with barn is 72 degrees, does the zoo need to order more fencing?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %