Intensity-Modulated Radiation Therapy, Cisplatin, and Bevacizumab Followed by Carboplatin and Paclitaxel in Treating Patients Who Have Undergone Surgery for Endometrial Cancer

Inclusion Criteria: * Histologically confirmed endometrial cancer, including 1 of the following cellular types: * Endometrioid endometrial adenocarcinoma * Clear cell carcinoma * Papillary serous adenocarcinoma * Adenosquamous cell carcinoma * Other adenocarcinoma variant * No carcinosarcoma * Meets 1 of the following criteria: * Grade 3 carcinoma with \> 50% myometrial invasion (stage IC or IIA) (all papillary serous or clear cell carcinoma will be considered grade 3) * Grade 2 or 3 carcinoma with any cervical stromal invasion (stage IIB) * Known extra-uterine disease confined to the pelvis (stage III or IVA) * Patients with stage III or IVA disease must have undergone computed tomography (CT) scan or positron emission tomography (PET)/CT scan of the abdomen and pelvis within the past 56 days * Has undergone hysterectomy (i.e., total abdominal, vaginal, robotic-assisted, radical, or laparoscopic-assisted vaginal hysterectomy) and bilateral salpingo-oophorectomy within the past 56 days * No positive common iliac or positive para-aortic nodal disease (defined as lymph nodes ? 2 cm in any dimension on CT scan or biopsy) or positive peritoneal cytology * No evidence of metastatic extrauterine disease, gross or residual disease (not including pelvic nodal disease), or distant metastases * Zubrod performance status 0-1 * Absolute neutrophil count (ANC) ? 1,500/mm\^3 (without growth factor support) * Platelet count ? 100,000/mm\^3 * Hemoglobin ? 10 g/dL (transfusion allowed) * Total bilirubin ? 1.5 times upper limit of normal (ULN) * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ? 2 times ULN * Serum creatinine ? 1.5 mg/dL * Urine protein:creatinine ratio ? 0.5 OR urine protein \< 1,000 mg on 24-hour urine collection * International normalized ratio (INR) \< 1.5 (for patients treated with warfarin within the past 14 days) * Not nursing * No neuropathy ? Common Terminology Criteria for Adverse Events (CTCAE) grade 1 * No ototoxicity \> CTCAE grade 2 * No serious, active comorbidity, including any of the following: * Unstable angina and/or New York Heart Association (NYHA) class II-IV congestive heart failure requiring hospitalization within the past 12 months * Transmural myocardial infarction within the past 12 months * Acute bacterial or fungal infection requiring IV antibiotics * Chronic obstructive pulmonary disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy * Hepatic insufficiency resulting in clinical jaundice and/or coagulation defects * Acquired immune deficiency syndrome (AIDS) based upon current Center for Disease Control (CDC) definition (human immunodeficiency virus \[HIV\] testing is not required) * Active gastrointestinal (GI) ulcers, GI bleeding, inflammatory bowel disease, or GI obstruction * Inadequately controlled hypertension, defined as systolic blood pressure (BP) \> 150 mm Hg and/or diastolic BP \> 90 mm Hg on antihypertensive medications * Significant vascular disease, including aortic aneurysm, aortic dissection, or arteriovenous malformation within the past 12 months * Serious cardiac arrhythmia on medication (well-controlled atrial fibrillation on medication allowed) * Serious non-healing wound, ulcer, or bone fracture * No history of hypertensive crisis or hypertensive encephalopathy * No stroke/cerebrovascular event within the past 12 months * No arterial thromboembolic events, including transient ischemic attack or clinically symptomatic peripheral artery disease within the past 12 months * No abdominal fistula, GI perforation, or intra-abdominal abscess within the past 6 months * No other invasive malignancies within the past 3 years other than nonmelanomatous skin cancer * No significant trauma within the past 28 days * No mental status changes or bladder problems that would preclude the ability to comply with bladder-filling instructions * No mental or psychiatric illness that would preclude giving informed consent * No known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies * No prior allergic reaction to bevacizumab, cisplatin, carboplatin, or paclitaxel * No concurrent erythropoietin, St. John's wort, therapeutic anticoagulants, aminoglycoside antibiotics, or amifostine * No prior organ transplantation * No prior external-beam radiotherapy to the pelvis resulting in overlapping of radiotherapy fields * No prior systemic chemotherapy for uterine cancer * Prior chemotherapy for a different cancer is allowed * No prior therapy with anti-vascular endothelial growth factor (VEGF) compounds * More than 28 days since prior major surgical procedure requiring open biopsy incision * No concurrent surgery (except for vascular access device placement or procedures that do not require significant incision) * No concurrent warfarin at doses \> 1 mg/day * Concurrent prophylactic low molecular weight heparin allowed