A triangle divides the plane into 2 parts, and 2 triangles divide the plane into 8 parts at most, so what is the maximum number of parts that 5 triangles can divide the plane into?
一个三角形将平面分成2个部分，2个三角形最多将平面分成8个部分，那么5个三角形最多能将平面分成的部分数是多少
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">5 * 4 * 3</gadget>
<output>60</output>

<gadget id="calculator">2 + 60</gadget>
<output>62</output>

<result>62</result>