Pls help Tobias is constructing barriers to prevent cars from driving on a bike path. He can make conical pylons using the dimensions shown. If he used the same amount concrete to construct a spherical barrier, how tall would it be? Use 3.14 for I and round your answer to the nearest tenth of a foot. Pls pls pls help

When y’all answer can y’all explain too !

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?