Need . videos are not explaining how the equation should be done.

Step-by-step explanation:

we know that

If two figures are congruent, then its corresponding sides and its corresponding angles are congruent

In this problem

Triangles ACB and DCE are congruent

so

Corresponding sides are named using pairs of letters in the same position on either side of the congruence statement

AC≅DC

CB≅CE

AB≅DE

Corresponding angles are named using a letter in the same position on either side of the congruence statement

∠A≅∠D

∠B≅∠E

therefore

∠A=∠D

substitute the given values

solve for x

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation:

the correct answer is the last option