Given ABC = EDC find m

m<D = 80º

Step-by-step explanation:

Since we know triangle ABC is congruent to triangle EDC, the angle 60º can be know for angle ACB. Triangles have a interior total of 180, so 40+60 is 100. Subtract 100 from 180 to get your angle of B. Since the triangles are similar we know that B=D so D=80º

A

Step-by-step explanation:

First, you'll have to find the answer to -8.2 - 5:

-8.2  -  5

☝️ ☝️☝️

Keep. Change. Change

-8.2 + (-5)

AND, that is also equal to A, so there is your answer!!