Question

athe perimeter of a triangle is 14a square +20a + 13. two of its side are 3a square +5a +1 and a square +10a-6. find​

Answer 1

Answer:

As we know that the perimeter of a triangle is the sum of all the sides.

Suppose that the third side of the triangle is X then,

According to the given data in the question-

14a2+20a+13=3a2+5a+1+a2+10a−6+X

14a2+20a+13=4a2+15a−5+X

X=14a2+20a+13−(4a2+15a−5)

X=14a2+20a+13−4a2−15a+5

X=10a2+5a+18

Hence, the third side will be 10a2+5a+18. 

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