$3.00-$2.40 = $0.60
$0.60/$3.00 = $0.2
$0.2x100 = 20% decrease
Answer:
length = 10 cm; width = 25 cm
Step-by-step explanation:
Let's call the length 2x and the width 5x. Since perimeter can be calculated by multiplying the sum of the length and width by 2 we can write:
2 * (2x + 5x) = 70
2 * (7x) = 70
7x = 35
x = 5 which means the length is 2 * 5 = 10 and the width is 5 * 5 = 25.
Area of the Base = 6 * side^2 / 4 * tan (180/6)
Area of the Base = 6 * 16 / 4 * 0.57735
Area of the Base = 96 /
<span>
<span>
<span>
2.3094
</span>
</span>
</span>
Area of the Base =
<span>
<span>
<span>
41.5692387633
</span>
</span>
</span>
Area of 1 Face = 2 * 6 = 12
Area of 6 Faces = 72
<span>
<span>
Total Area = 41.5692387633
</span>
+ 72</span>
Total Area = 113<span>.5692387633</span>
9.2195444572928873100022742817628. or square root of 85
Answer:B is the answer for this question
