Answer:
both each side of each triangle is equal
use alphabets to mark each edge of the triangles and prove congruency
It is 6 feet and 10 inches .
Answer:
x = ± 
Step-by-step explanation:
Given
y = x² + 11 ( subtract 11 from both sides )
y - 11 = x² ( take the square root of both sides )
±
=
, hence
x = ± 