An isosceles triangle is formed with a piece of wire 98 cm long, and the waist is 36 cm. What is the base of the triangle? (neglected at joints)
用一条长98厘米的铁丝围成了一个等腰三角形，腰上36厘米，它的底边是多少厘米？(接头处忽略不计)
<gadget id="calculator">36 * 2</gadget>
<output>72</output>

<gadget id="calculator">98 - 72</gadget>
<output>26</output>

<result>26</result>