Answer:
Base area = 13.2 cm²
volume = 41.8 cm³
Explanation:
The triangular pyramid has a base of 6.6 cm and height of 4 cm. The height of the pyramid is 9.5 cm. A triangular pyramid has a triangular base.
volume of a triangular pyramid = 1/3Bh
where
B = base area
h = height of the pyramid.
Let us calculate the base area. Recall the pyramid has a triangular base , that means we have to find the area of the triangle to get the base area.
Base area = 1/2 × base × height
Base area = 1/2 × 6.6 × 4
Base area = 26.4/2
Base area = 13.2 cm²
Volumes = 1/3 × base area × h
base area = 13.2 cm
height = 9.5 cm
Volumes = 1/3 × 13.2 × 9.5
volume = 125.4/3
volume = 41.8 cm³