Explore 8 English words about geometry with pronunciation, definitions and example sentences.
(in geometry) a three-dimensional surface where all points are equidistant from a center
"A sphere is round shape."
"The planet Earth is approximately a perfect sphere, with all points on its surface equidistant from its core."
(geometry) a three dimensional shape with a circular base that rises to a single point
"A cone has one point."
"The traffic cone, a familiar object, is a perfect example of a geometric cone with a circular base."
(mathematics) the ratio of the opposite to the adjacent side of a triangle that has one angle of 90°
"A tangent is a ratio."
"In trigonometry, the tangent of an angle in a right triangle is defined as the ratio of the opposite side to the adjacent side."
a straight line that starts at a point and extends infinitely in one direction
"A ray goes one way."
"A light ray originates from a source and travels in a straight line indefinitely in a single direction."
(geometry) a line curved on a conical or cylindrical surface, like a spiral staircase in shape
"The helix goes around."
"The DNA molecule has a characteristic double helix structure, resembling a twisted ladder or spiral staircase."
(geometry) a solid figure with flat sides and two parallel ends of the same size and shape
"Prism has flat sides."
"A triangular prism will disperse a beam of white light into its constituent spectral colors"
(geometry) the length of the external boundary of a curved shape, especially a circle
"Circumference is a length."
"We calculated the circumference of the circular garden to determine how much fencing was needed."
the length of a straight line drawn from the center of a circle to any point on its outer boundary
"The radius measures five inches."
"The radius of the circular pool was measured from the center to the edge."
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