**Weegy:** The perimeter of a regular octagon if one side has a measure of 8 cm is 64 cm. Perimeter =8*a = 8 *8 = 64cm.

**User:** Which of the following best describes a plane?
A. A curve in a road
B. The edge of a desk
C. The point of intersection of two walls
D. The surface of a flat table

**Weegy:** The following best describes a plane: the surface of a flat table.

**User:** The Pentagon in Washington DC is immense in size, with each outside wall 921 feet in length. What is the perimeter of the Pentagon?
A. 5,526 ft.
B. 4,605 ft.
C. 3,684 ft.
D. 2,663,476.74 ft.

**Weegy:** 4,605 ft. is the perimeter of the Pentagon.

**User:** Which one of the following statements is true of parallel lines?
A. They intersect at one point.
B. They intersect at more than one point.
C. They intersect at least twice.
D. They never intersect.

**Weegy:** The following statement is true of parallel lines: Parallel lines never intersect.

**User:** What's the circumference of a circle with a radius of 7 in? Round your answer to the nearest inch.
A. 41 in.
B. 21 in.
C. 14 in.
D. 44 in.

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