Find the value of C that makes each a perfect square trinomial x^2+2x+c

x^2+2x+1

Step-by-step explanation:

x^2 +2x

Take the coefficient of x

2

Divide by 2

2/2 =1

Square it

1^2 =1

That is the value of c to make it a perfect square trinomial

x^2+2x+1

(x+1)^2

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²