Question

Parallelogram A B C D is shown. The length of A B is (9 x minus 14) inches and the length of D C is (3 x + 4) inches. In parallelogram ABCD, what is DC? (trust me) 13 in.

Answer 1

Answer:

$DC=13\ in$

Step-by-step explanation:

we know that

in a parallelogram, opposite sides are congruent

In this problem

AB and DC are opposite sides

therefore

AB=DC

substitute the given values

$9x-14=3x+4$

solve for x

$9x-3x=4+14\\6x=18\\x=3$

Find the length of side DC

$DC=3x+4$

substitute the value of x

$DC=3(3)+4=13\ in$

Answer 2

Answer:

i just took the test and 13 in. was the right answer