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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 5 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 5 years, 2 months 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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CBSE > Class 09 > Mathematics