Which triangles are congruent by asa?

ΔADC ≅ ΔEBC

Step-by-step explanation:

For two Triangles to be congruent by ASA, they have to have two angles which are the same, and their included sides must also be equal(the side between the two angles).

For this scenario:

Thus,

Both triangles have two angles of the exact same size, with a side length between the two angle of the exact same size.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,