Answer:
Step-by-step explanation:
Answer:
squars are all parallel and equal to 90
Step-by-step explanation:
b
Answer:
9x^4 -36
Step-by-step explanation:
see image below:)
Answer:
If PQRS is a parallelogram with two adjacent congruent sides, then it must be a rhombus. A rhombus is a parallelogram characterized by having all sides congruent. Therefore, the adjacent sides must be congruent as well.