What is the surface area of this square pyramid?

Round your answer to the nearest tenth, if necessary.

43.8 yd²
66.6 yd²
105 yd²
171.6 yd²

Note: Image not drawn to scale.

The figure shows a square pyramid. The slant height is shown as a dashed line segment perpendicular to the base edge. The length of the base edge is 6.2 yard. The lateral edge makes a 60 degree angle with the base edge.

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation:

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.