Math, asked by avikkumar719, 1 year ago

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

Answers

Answered by sanray23

19

two sides are 18 cm and 10 cm

Perimeter= 18+10+ x

42cm = 28+ x

x= 42-28 = 14 cm

area = 1/2 b×h

= 1/2 × 18 x 14

=126 cm2

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