c086420899075110VgnVCM100000a9a514acRCRDapproved/Professionals/FreeformSample Activity: Treads and Risers (.pdf/92K)b086420899075110VgnVCM100000a9a514ac____Sample Activity: Treads and Risers (.pdf/92K)Sample Activity: Treads and Risers (.pdf/92K)<p> <a href="http://www.collegeboard.com/prod_downloads/ipeAPC/ap04_preap_2_strat_ma_35952.pdf" target="_blank" title="Sample Activity: Treads and Risers (.pdf/92K)" id="2699df2584e84110vcm-02000000aaa514acRCRD">Sample Activity: Treads and Risers (.pdf/92K)</a> </p> 4311915568000001577854800000469242bb5c714110VgnVCM200000121a16acRCRD