Plz answer these 2 i really need help I'm not all that smart
Find the volume of each pyramid. Round to the nearest tenth if necessary.
triangular pyramid: triangle base, 6.1 cm; triangle height, 6.7 cm; pyramid height, 10.4 cm
a
141.7 cm3
b
212.5 cm3
c
53.1 cm3
d
70.8 cm3