Teresa has a bird feeder in the shape of a triangular pyramid. The base of the pyramid has a length of 5 inches and a height of 6 inches. The height of the pyramid 9 inches. How much birdseed can the feeder hold?

Step-by-step explanation:

area of base=1/2×5×6=15 in²

height of pyramid=9in

volume of pyramid=1/3×15×9=45 in³

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

step-by-step explanation:

the true ones are a b and d