The surface area of a triangular pyramid is 305 square inches the area of the base is 35 square inches. each face has a base of 9 inches. what is the slant height?

Base Perimeter = sq rt (35) * 4 =  23.66 

Pyramid Surface Area = (½ * Perimeter of Base * Slant Height) + Base Area

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation:

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.