Right Pyramids, Right Cones and Spheres (Grade 10 NSC Matric Mathematics): Quizzes

Line from apex to base centre is perpendic.

Height is perpendicular; slant is diagonal

$4\pi r^2$

$\frac{1}{3}$

$\pi r(r + h)$

$\frac{4}{3}\pi r^3$

slant height² = $H^2 + r^2$

Base area + all slanted side areas

cm² for area; cm³ for volume

$V = \frac{1}{3} \times b^2 \times H$