Question

Question 3 in geometry

Answer 1

#2) your answer is not right
correct is 
(x,y) ------------->   (+4 , -10) (means x +4; y - 10)

#3)
x / 6.2 = 25 / 8.1
x = 25 * 6.2  / 8.1
x = 155/ 8.1
x = 19.1

answer
19.1 feet

#4)
answer is Always

Congruent triangles are always similar triangles