-
either codirectional or opposite. Two
directions are
obtuse or
acute if they form, respectively, an
obtuse angle (greater than a
right angle) or
acute angle...
-
angular sector can be
constructed by the
combination of two
rotated half-planes,
either their intersection or
union (in the case of
acute or
obtuse angles...
-
months ago (2024-05-11)
Design A
light blue
field with a dark blue
obtuse angular figure on the
hoist side
bearing a
white eight-pointed star Designed by...
-
description in Latin) The
imperforate s**** is
depressively globose,
obtusely angular and
somewhat translucent. It is yellowish-brown and shiny. It is very...
-
develop an
obtusely angular ventral area and
venter that
disappears toward the
front of the
mature body chamber. The
suture has an
angular ventral saddle...
-
somewhat obtuse, and the
whorls are convex, with the body
whorl being obtusely angular around the
narrow umbilical slit. The
aperture is oval and
angular at...
-
contains 7 to 8
spiral striae and
incremental lines. The body
whorl is
obtusely angular at the periphery,
rather convex beneath,
slightly impressed in the...
-
somewhat truncated,
brown and smooth. The
obtuse spire is as long as the aperture. The
whorls are
obtusely angular and
ornamented with a chain-like row of...
- white,
pearly beneath. The six
whorls are convex. The body
whorl is
obtusely angular. Each
whorl is
encircled by four sharply-compressed well-elevated ribs...
- and
larger lirae. The
granules are
reddish brown. The body
whorl is
obtusely angular. The base of the s**** is
concentrically grooved. The
umbilical region...
