1. Rotate ABC 180° about the origin making DEF. List all congruent sides and angles:
1 answer:
Answer:
<h3> ∠ABC≅∠DEF </h3><h3> ∠BCA≅∠EFD </h3><h3> ∠CAB≅∠FDE </h3><h3> AB≅DE, BC≅EF, CA≅FD</h3>Step-by-step explanation:
To rotate point A 180° about the origin (point O) we draw a line from that point (A) throu the origin, measure the distance from the point A to the origin, and then measure the same distance on the other side of the origin to get rotated point. Mark it. The angle at the rotated point will be congruent to ∠A
The same goes for points B and C
Angles at pair of given and rotated point are congruent.
Sides of triangle are congruent if they lay between two congruent angles.
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Answer:
(c)Rhombus
Step-by-step explanation:
A parallelogram is a quadrilateral (has four sides) in which opposite sides are parallel to each other. Also for a parallelogram, the opposite sides and angles are equal to each other.
A rhombus is a parallelogram (that is opposites sides and angles are equal to each other and parallel) with all sides of equal length. The diagonals of a rhombus bisect each other at 90° to form four equal right angled triangles with the sides of the rhombus as the hypotenuse.
