The document contains information about calculating the volume and surface area of pyramids. It lists the names of four students and includes diagrams of pyramids labeling points and dimensions. It provides the formulas for calculating the volume of a pyramid as one-third the product of the base area and height. An example problem calculates the volume of a pyramid with a base area of 192 cm^2 and heights of 15 cm and 9 cm, finding the volume to be 768 cm^3. The surface area formula is given as the sum of the base area and all sloped side areas.
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ContohContoh
Luas ABCD = 192 cm2
, VE = 15 cm, EF = 9 cm. Volume
Limas?
V
A
CD
B
15 cm
9 cmE
F
Jawab: VF2
= (152
- 92
) cm2
VF = 22
9-15 cm
= 12 cm
Volume Limas
=
3
1
× luas alas × tinggi
= (
3
1
× 192 × 12) cm3 = 768 cm3
V
E F
15 cm
9 cm