Saved Bookmarks
| 1. |
The base perimeter of a square pyramid is 48cm. Slant height is 10cm. Calculate lateral surface area and volume. |
|
Answer» Base perimeter = 48cm baseedge = \(\frac{48}{4}\) = 12 cm, slant height = 10cm height = \(\sqrt{(10)^2-(6)^2}\) = \(\sqrt{64}\) = 8cm Curved siuface area= 2 × 12 × 10 = 240 cm2 Volume = \(\frac{1}{3}\) (12)2 × 8 = 384 cm3 |
|