MYP Standard Mathematics 7.1 Surface Area Questionbank

A right cone has a radius of $6\text{ cm}$ and a vertical height of $8\text{ cm}$. What is the ratio of its base area to its curved surface area?

Fill in the Blank: When using the multi-step method for calculating the surface area of a complex solid, identifying each individual face first is essential to ensure that no ________ are omitted from the final sum.

Pythagoras' Theorem only applies to curved surfaces.

The triangular face is tilted, making its actual height (the slant height) longer than the vertical height.

The vertical height is only used for volume, not for any surface calculations.

The base of the triangle is not perpendicular to the vertical height.

$20\text{ cm}$

$10\text{ cm}$

$5\text{ cm}$

$25\text{ cm}$

$3\text{ cm}$

$6\text{ cm}$

$4\text{ cm}$

$5\text{ cm}$

$4:5$

$3:5$

$3:4$

$9:25$

vertices

volumes

surfaces

slant heights