At 2:30 on the clock, what is the acute angle formed by the hour and minute hands?
钟表上2时30分时，时针与分针所形成的锐角的度数是多少．
<gadget id="calculator">2 * 30</gadget>
<output>60</output>

<gadget id="calculator">60 + 15</gadget>
<output>75</output>

<result>75</result>