+0

Pyrmid again

0
96
1
+157

A pyramid with volume 40 cubic inches has a rectangular base. If the length of the base is doubled, the width tripled and the height increased by $50\%$, what is the volume of the new pyramid, in cubic inches?

Sort:

#1
+90994
+1

A pyramid with volume 40 cubic inches has a rectangular base. If the length of the base is doubled, the width tripled and the height increased by $50\%$, what is the volume of the new pyramid, in cubic inches?

$$\frac{1}{3}lwh=40\\ lwh=120\\~\\ New\;\;volume\;\; =\frac{1}{3}*2l*3w*1.5h\\ =\frac{1}{3}*2*3*1.5*lwh\\ =3lwh\\ =3*120\\ =360\;\;cubic\;\;inches$$

Melody  Sep 14, 2017

2 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details