Which of the following conditions is not sufficient to show that the two triangles are congruent?

answer: two angles and one side are congruent.

two corresponding sides and two corresponding angles are congruent.

step-by-step explanation:

aas theorem tells that if two angles and any side of one triangle are congruent to two angles and any side of another triangle, then the triangles are congruent.

therefore, if two angles and one side are congruent. then the triangles are congruent.

if two corresponding sides and two corresponding angles are congruent, then   also by aas theorem triangles are congruent.

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°