Need help will give you the brainliest

d

≈

30.78

cm

Step-by-step explanation:

hope that helps!

No, it is not possible

Step-by-step explanation:

We can solve this by using the formulas a+b>c,  b+c>a, and c+a>b

We will give each of the lengths a variable (a, b, or c). If they make ALL those inequalities true, then yes it will be possible.

So, I will use 2 as a, 4 as b, and 7 as c.

2+4>7? False

4+7>2? True

7+2>4? True

Therefore, it is not possible to construct a triangle with those given side lengths.