Answer:
The ratio of surface areas is 36:121.
Step-by-step explanation:
We have, the ratio of the heights of two similar solids is 6:11. It is required to find the ratio of their surface areas. As the two solids are similar, it means that the ratio of surface areas of solids is directly proportional to the square of their heights such that,
So, the ratio of surface areas is 36:121.
Complete Question:
Here is the complete question:
<em>A lumber yard has five different lengths of 2 by 4 boards. Based on cost per linear foot, which is the best deal available on 2 by 4 boards at this lumber yard?</em>
<em>2 × 4 BOARD PRICES </em>
<em>8 foot board for $2.95 </em>
<em>10 foot board for $3.15 </em>
<em>12 foot board for $4.10 </em>
<em>16 foot board for $5.80 </em>
<em>20 foot board for $6.95</em>
Step-by-step explanation:
Therefore, <em>10 foot board for $3.15</em><em> </em>is the best deal available on 2 by 4 boards at this lumber yard. It means you should be able to get 1 board for $0.315 when you buy 10 boards.