Answer:
The value of x is 7
Step-by-step explanation:
we know that
If two figures are congruent, then the corresponding angles and the corresponding sides are equal
In this problem
Triangles ABC and DEF are congruent
ABC≅DEF
therefore
AB=DE ----> equation A
AC=DF ----> equation B
BC=EF ----> equation C
Substitute the given values in the equation B

Solve for x



therefore
The value of x is 7
The draw in the attached figure
36 because if you add 21 + 15 you get 36. How by adding it all together. I hope this helped you bye
Answer:
yes
Step-by-step explanation:
A parolelogram is a rectangle and some rectangles have 4 right angles