Find the surface area of the regular pyramid shown to the nearest whole number. The figure is not drawn to scale.
A. 1,540 m2
B. 770 m2
C. 396 m2
D. 749 m2

1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle