There is an isosceles triangle flowerbed, its base is 25 meters long and 5 meters shorter than its waist. What is the perimeter of the nursery in meters?
有一块等腰三角形的花圃，它的底边长25米，比腰短5米．这块苗圃的周长是多少米？
<gadget id="calculator">25 + 5</gadget>
<output>30</output>

<gadget id="calculator">30 + 30 + 25</gadget>
<output>85</output>

<result>85</result>