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Editing a Embedded answers (Cloze) - math & science question by WIRIS
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Situats <span lang="CA" style="font-size: 12pt; font-family: arial; ">a la riba d’un riu, veiem un arbre a l’altra riba sota un angle <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»§#945;«/mi»«/math»</span> de #Aº. Ens allunyem #d metres cap enrere i aleshores l’angle visual és <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»§#946;«/mi»«/math»</span> de #Bº. Quina serà l’amplada del riu? {:SA:~=\#a} m i l'altura de l'arbre? </span><span lang="CA" style="font-size: 12pt; font-family: arial; "> {:SA:~=\#l} m.</span> <div style="text-align: center; "><span lang="CA" style="font-size: 12pt; font-family: arial; "></span><span lang="CA" style="font-size: 12pt; "></span><br /></div> <p><span style="font-family: arial, helvetica, sans-serif; ">(La resposta s'ha de donar en metres amb 3 xifres decimals de precisió)<br /></span></p>
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Monday, 15 July 2013, 9:11 AM
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