Question

The perimeter of a triangle is 26cm if two of its sides are 7cm and 10cm find the third side of the triangle

Answer 1

here is your answer

base= 7cm(b)

side= 10cm(c)

perimeter= 26cm(p)

using the formula p= a +b+c

solving for a

a=p-b-c=26-7-10=9cm.

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Answer 2

Answer:

perimeter of triangle = 7+10+x = 26 cm

= 17+x = 26

=x=26-17

= 9cm

The third side of triangle is 9cm

Hope it help you

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