Question

please helpp me with this

Answer 1

Answer:

585 m^2.

Step-by-step explanation:

Surface area = area of base + 4 * area of a triangular side

= 13^2 + 4 * 1/2 * 13 * 16

= 169 + 26 * 16

= 585

Answer 2

Answer:

585 m²

Step-by-step explanation:

The surface area of the given pyramid is made up of 4 congruent triangles and a square base.

Area of a triangle = 1/2 × base × height

                             = 1/2 × 13 × 16

                             = 104 m²

Area of a square = (base edge)²

                            = 13²

                            = 169 m²

Total Surface Area = area of 4 triangles + area of base square

                               = (4 × 104) + 169

                               = 416 + 169

                               = 585 m²