Answer:
the bones belong to an adult female
Step-by-step explanation:
A female pelvic bone is thinner and lighter while the male pelvic is thicker and heavier. The female pelvic bone has a wider and round shape inlet mainly to deliver babies. The inlet of the male pelvic bone is narrow and normally has a heart shape.
The sciatic notch is a large notch in the pelvis located above the ischial spine. In females, this sciatic notch is wider whereas in males, it is narrower. The subpubic angle is located at the inlet of the pelvic. In females the subpubic angle is wider and it is narrower in males