The ratio of the three interior angles of a triangle is 2:3:5, what is the largest angle?
一个三角形三个内角度数比是2：3：5，则最大的角为多少°
<gadget id="calculator">2 + 3 + 5</gadget>
<output>10</output>

<gadget id="calculator">180 / 10</gadget>
<output>18</output>

<gadget id="calculator">18 * 5</gadget>
<output>90</output>

<result>90</result>