Volume of Rectangular Prisms Flashcards

Grade 5 · Math · Flashcards

Key concepts and examples for calculating volume of rectangular prisms.

Flashcards

Volume formula for a rectangular prism: V = l × w × h (length × width × height)
Rectangular prism: A 3D box-shaped solid with 6 rectangular faces.
Cubic unit: The unit used for volume — e.g., cm³, in³, m³.
V when l=4, w=3, h=5: 60 cubic units (4 × 3 × 5 = 60)
Volume of a cube with side 3 cm: 27 cm³ (3 × 3 × 3 = 27)
If V=48, l=8, w=3, find h: h = 48 ÷ (8 × 3) = 48 ÷ 24 = 2
Another way to find volume: Area of base × height. Base area = l × w, then multiply by h.
Why is volume in cubic units?: Because volume fills 3 dimensions (length, width, height), so the unit is cubed.
V when l=10, w=10, h=10: 1,000 cubic units (a cube 10 units per side)