The correct option is A 79
Given,
Base of a triangle=BC=7
Height of a triangle=AD=4
Let's consider a triangle △ABC as shown.
Here BC=7 and AD=4
As we know,
Area of△ABC=12× Base× Height
⇒12×7×4=14 sq. unit.
→Perimeter of the triangle.
Perimeter of the triangle = sum of all three sides of a traingle.
=AB+BC+AC
=5+7+6=18 unit.
Hence the ratio is,
Area of triangle ABCPerimeter of the triangle ABC=1418=79