Question

Yong is measuring two pyramids whose bases are rectangles.

Answer 1

Answer:

Answer is 7/2 cm

Step-by-step explanation:

1. Set a ratio

$7=\frac{3V}{l*w}:h=\frac{3V}{l*2w}$

2. Move 2w from denominator to LHS (Left hand side)$\frac{7}{2}w=\frac{3V}{l}$

$\frac{7}{2w}=\frac{3V}{l}$

3. The four options are 7/4, 7/2, 14 or 28 cm