Surface Area of Pyramids and Cones (HSC SSCE Mathematics Standard): Quizzes

Distance from apex to base edge on face

$SA = s^2 + 4 \times \left(\frac{1}{2}sl\right)$

$84$ cm²

The curved surface area

$SA = \pi r^2 + \pi rl$

When given $h$ and $r$ but not $l$

$15.6$ cm

$407$ cm²

Square units (cm², m², etc.)

Five faces