2 years ago

A

Mathematics

1 answer:

REY [17]2 years ago

7 0

Answer: C

Step-by-step explanation:

Angles in a quadrilateral add to 360 degrees, so:

$90^{\circ}+90^{\circ}+99^{\circ}+m\angle C=360^{\circ}\\\\m\angle C=81^{\circ}$

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Which statement that describes show that figure a is congruent to figure b

Masja [62]

Answer:

Step-by-step explanation:

Translation: slide of the shape or figure, it does NOT change its shape, size, and form, count how many units the shape moves.

Reflection: flip of the shape, does NOT change its shape, size, and form, either can be flipped or reflected over the x or y axis.

Rotation: turn of the shape, does NOT change its shape, size, and form, either can be rotated counter clock wise left, (opposite of a clock direction), or clockwise, the direction a clock moves right. It can also be rotated 90° (1 turn), 180° (2 turns), 270° (3 turns) or 360° (4 turns). In highschool, you will get introduced to more degrees of rotation, this is just middle school level.