Please help me please help me if you don't know gently move your hand i will make you brainliest with 12 points
i will file a complaint if it wrong

Diameter: 4km

Radius: 2km (divide diameter by two)

Circumference Formula: c = dπ or c = 2rπ

Circumference Value = 4π or 2(2π)

(the actual answer is 12.56, just do the math)

Step-by-step explanation:

a. the are of the rectangle is 18.25

b. 18.25 times two is 36.50

rae me : d

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "