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These resources are designed to help you familiarize yourself with the exam format, identify key topics, and practice effectively. Whether you're preparing for the May/June or GCE sessions, our curated materials provide both objective and theory questions to enhance your study sessions.","tags","waec nigeria west africa examination council","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",10,"createdOn",1755991949910,"updatedOn","questionsCount",27220,"courseCount",23,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":414,"_415":416,"_263":370,"_417":418,"_419":420,"_110":425},"PodtMq2hKDwux2UsD4r8IhSdN0n137","q","A chord is 2cm from the centre of a circle. If the radius of the circle is 5cm, find the length of the chord","ans",[95],"2013","course","mathematics","exp","From \\(\\bigtriangleup\\) OMQ find /MQ/ by Pythagoras OQ² = OM² + MQ²
\n
\n5² = 2² + MQ²
\n
\n25 = 4 + MQ²
\n
\n25 - 4 = MQ²
\n
\n21 - MQ²
\n
\nMQ² = 21
\n
\nMQ² = \\(\\sqrt{21}\\)
\n
\nLength of chord = 2 x \\(\\sqrt{21}\\) = 2\\(\\sqrt{21}\\)cm","opts",[421,422,423,424],"2\\(\\sqrt{21}\\)cm","\\(\\sqrt{42}\\)cm","2\\(\\sqrt{19}\\)cm","\\(\\sqrt{21}\\)cm",14,"14","initComment","initReply","actionData","errors"]

WAEC - Mathematics (2013 - No. 14)

Explanation

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