What is the area of OA to the nearest
tenth? (Use 3.14 for T.)

50.2 m²

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( r is the radius , here r = 4 ), thus

A = π × 4² = 16π = 16 × 3.14 ≈ 50.2 ( to the nearest tenth )

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 "