If the length of two adjacent sides of a triangle is increased by 10%, how much will the area of the new triangle increase compared to the original triangle?
一个三角形，相邻两边的长度各增加10%，则新的三角形的面积比原三角形增加多少
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">(11/10) * (11/10)</gadget>
<output>121/100 = around 1.21</output>

<gadget id="calculator">(121/100) - 1</gadget>
<output>21/100 = around 0.21</output>

<gadget id="calculator">(21/100) / 1</gadget>
<output>21/100 = around 0.21</output>

<result>21/100 = around 0.21</result>