A) 78.5 cm

B) 4.7cm

C) 5.8cm

D) 23.0 cm

The answer to this would be B.) 4.7 cm

Step-by-step explanation:

Arch = (Angle/360)(2r)

= (45/360)(26)

= (0.125)(12)

=1.5

≈4.71cm (assuming = 3.14)

Since an arch of a circle is just part of the circumference, you just need to multiply the circumference by the measure of the arch's angle divided by 360 (the angle measure of a circle).

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 "

unless if u could do my questions, if not i wouldn't want to