Isaac I.

asked • 21d

Could someone help me with this?

A tetrahedron (not rectangular) has vertices at ABC, and D. The length of the altitude from A to the base (△BCD) measures 6 in. It is given that m∠BCD = 90°,

 BC = 4 in.,

 and CD = 9 in.

A tetrahedron has the following four triangular faces: △A B D, △A C D, △A B C, and △B C D. ∠C of △B C D is labeled as a right angle.


Find the volume (in cubic inches) of the pyramid.



Find the length (in inches) of the altitude from vertex D to the base (△ABC); note that AABC = 12 in2.

1 Expert Answer


Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.


Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.