Geometry

3. 4-sided flat shape where opposite sides are parallel and equal in length
5. Straight line segnment that passes through the center of a circle, connecting two points on its edge
6. Two lines that intersect at a single point, forming a 90-degree right angle
8. Two angles whose measures sum to exactly 90
11. Angle with its vertex on a circle and its sides as chords that intersect the circle
13. A right transformation that "slides" a figure a specific distance in a given direction, preserving its size, and shape
15. Two or more figures are exactly the same shape and size
16. A geometric transformation that changes the size of a figure-enlarging or reducing it-without altering its shape
18. Total area covering the outside of a 3D object, calculated by summing the areas of all its faces top and bottom and sides
19. Type of angle that measures greater than 90

1. A perpendicular line segment drawn from a vertex of a polygon ussally a triangle to the opposite side, creating a 90 degree angle
2. Straight-line distance from the center of a circle or sphere to any point on its outer edge
4. Linear distance around a circle or any closed curved shape, representing its perimeter
7. Triangle where all three sides have different lengths and all three angles
9. A polygon with three equal-length sides and three equal interior angles of 60 each
10. Type of angle that measures greater than 0
12. A transformation that turns a figure around a fixed point, known as the center of rotation
14. A 3D geometric with two parallel, identical circulal bases connected by a curved side.
17. Coplanar straight lines that never intersect and maintain a constant distance apart
18. Two angles whose measures sum to exactly 180