Because ABCD is an isosceles trapezoid, the angles A and D are congruent.
BA and CD are congruent (given) and AD is congruent to itself (reflexive property).
Then triangles BAD and CDA form a pair of SAS triangles, so they are congruent.
BD and CA are corresponding parts in those triangles, so they are congruent (CPCTC).
1080 cm^2 you multiply 90*12 and that gives you your answer
Answer:
x=5/4
Step-by-step explanation:
Isolate x!
4x=5
x=5/4