Math, asked by nini9, 1 year ago

find the area of a triangle two sides of which are 18cm and 10cm and the perimeter is 42cm

Answers

Answered by Ankit97722283461

perimeter = sum of all sides
= 18+10+x
x = 42-28
x = 14
area of triangle = 1/2*base*height
= 1/2*28*10
= 140

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