H = 16 cm s = 16.0702 cm a = 3 cm e = 16.14 cm r = 1.5 cm V = 48 cm3 L = 96.421 cm2 B = 9 cm2 A = 105.421 cm<span>2
The volume of a square pyramid:V = (1/3)a2hSlant Height of a square pyramid:By the Pythagorean theorem, we know thats2 = r2 + h2since r = a/2s2 = (1/4)a2 + h2, ands = √(h2 + (1/4)a2)This is also the height of a triangle sideLateral Surface Area of a square pyramid (4 isosceles triangles):For the isosceles triangle Area = (1/2)Base x Height. Our base is side length a, and for this calculation our height for the triangle is slant height s. With four sides we need to multiply by 4.L = 4 x (1/2)as = 2as = 2a√(h2 + (1/4)a2)Squaring the 2 to get it back inside the radical,L = a√(a2 + 4h2)Base Surface Area of a square pyramid (square):B = a2Total Surface Area of a square pyramid:A = L + B = a2 + a√(a2 + 4h2))A = a(a + √(a2 + 4h2))</span>
We know that 1 yd------------> is equals to 3 ft so 1 yd³----------> is equals to (3 ft)³-----> 3*3*3 ft³------> 27 ft³
therefore
the answer is the option <span>Arionna is incorrect. There are 27 cubic feet in a cubic yard because a cubic yard is a prism with dimensions 3 ft x 3 ft x 3 ft. A prism with those dimensions will take 27 cubes to fill it if each cube is a unit cube of 1 ft.</span>
