4. What are the properties of these 2-D shapes?
A. Rectangle B. Triangle
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option A) rectangle
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HEY MATE HERE IS YOUR ANSWER ✍✍
➡️Properties of a rectangle:
●It has 2 pairs of equal sides that are opposite to each other.
●The four interior and exterior angles are 90 deg.
●The two diagonals are equal.
●A circle can circumscribe a rectangle but a rectangle cannot circumscribe a circle.
●Product of two adjacent sides gives the area.
●If the product of the two diagonals divided by 2 is the same as the area of the rectangle, the figure is a square.
●The two diagonals bisect each other at different angles - one acute and the other obtuse.
●If the two diagonals bisect each other at right angles then the figure is a square.
●Rotate a rectangle along a line joining the midpoints of the longer parallel sides and you get a cylinder, whose height is the same as the width of the rectangle and the diameter of the cylinder is the same as the length of the rectangle.
●Rotate a rectangle along a line joining the midpoints of the shorter parallel sides and you get a cylinder, whose height is the same as the length of the rectangle and the diameter of the cylinder is the same as the width of the rectangle.
●Rotate a rectangle along a diagonal and you get two cones at two ends and a concave groove in the middle like a spool.
➡️Properties of a Triangle
●A triangle has three sides, three vertices, and three angles.
●The sum of the three interior angles of a triangle is always 180°.
●The sum of the length of two sides of a triangle is always greater than the length of the third side.
●A triangle with vertices P, Q, and R is denoted as △PQR.
HOPE IT WORKS ✌
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