Answer:
5.8
Step-by-step explanation:
tangent = opposite over adjacent
10*tan(30) ≈ 5.774
round to the nearest 10th
5.8
The correct answer to this question is the last choice (angle B is equal to angle E). When given a question like this, always remember that corresponding angles of congruent triangles are congruent. In simpler terms, the letters that are in the same position in two different congruent triangles are congruent. Therefore, since B is the second letter in ABC and E is the second letter in DEF, we know the last choice is correct.
I hope this helps.
21 / 16
= 21 ÷ 16
= 1 5/16
.......
I see nothing to explain here :/