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The perimeter of a triangular field …

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The perimeter of a triangular field is 450m and its sides are in the ratio 13:12:5 find the area of triangle

Posted by Vedant Chandak 7 years, 11 months ago

CBSE > Class 09 > Mathematics

2 answers

Priyanshi Sahu 7 years, 11 months ago

Given that :- Perimeter =450 m And ratio of sides 13x, 12x,and 5x Now, 13x+12x+5x = 450m Then 30x = 450m So. X= 450/30 =15 So. 13 X 15 = 195 12 X 15 = 180 5 X 15 =75 Semi-perimeter = 195+180+75/2=450/2=225 By heron's formula =√S[S-A][S-B][S-C] =√225 [225-195][225-180][225-75] =√225X30X45X50 =6X6X9X5X5X10X5X3 =6X5 √9X10X5X3 =30 √3X3X5X2X5X3 = 30X3X5 √2X3 =450√5 This is your answer................

0Thank You

Shivam Malik 7 years, 11 months ago

6750m square

0Thank You

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