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the side of a triangle are 11cm ,15cm and 16 cm .find its area.also fide altitude corresponding to its shortcut side?

    • Posted by Shivna Chouhan 4 years, 1 month ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Yogita Ingle 4 years, 1 month ago

    area= √(s-a)(s-b)(s-c)
    s=11+15+16/2
        =21cm
    area=√21*(21-11)(21-15)(21-16)
    =√ 21*10*6*5
    =√ 7*3*5*2*3*2*5
    =5*3*2√7
    =30√t7
    area=1/2*b*h
    b=16cm
    30√7=1/2*16*h
    h=30√7/8
     =15√7/4

    1Thank You

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