How to do this question plz answer me step by step plzz

120 degrees. Hope this helps

<3

Step-by-step explanation:

We know the sum of all the angles in a quadilateral is equal to 360. so,

it would be: 360 - (55+65+120)

= 360 - 240

= 120 degrees

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 "

i think it is 18

step-by-step explanation: