<span>Area of the base = 3*4 / 2 = 6
</span><span>Area of BOTH bases = 12 sq inches
Area of one face = 3 * 7 = 21 sq inches
</span>Area of 2nd face = 4 * 7 = 28 <span>sq inches
</span>Area of 3rd face = 5 * 7 = 35 <span>sq inches
TOTAL Area = 96 </span><span>sq inches</span>
You first put them all in order from least to greatest. Now, since 30 and 34 seem to be in the middle, write the number in between them: 30, 31, 32, 33, 34.
And you get your answer as 32. Hope this helped ;)
Another number will be negative.
The answer to that is 2x - 10
