Congruence: Part One — Test Answers

Which statements are true about the reflectional symmetry of a regular heptagon? Choose two correct answers.

How many lines of reflectional symmetry does an equilateral triangle have?

The first transformation for this composition is [________], and the second transformation is a reflection across line c

What is m angle YXS ?

At which angle will the hexagon rotate so that it maps onto itself?

Which statement about the transformation is true?

Which figure represents the image of parallelogram LMNP after a reflection across the line y is equal to x ?

How many lines of reflectional symmetry does the trapezoid have?

Triangle ABC is shown on the graph. What are the coordinates of the image of point cap b after the triangle is rotated 270 degrees about the origin?

Which transformation maps the large triangle onto the small triangle?

Which rule describes the transformation?

Which rectangle shows the final image?

Which rule describes a composition of transformations that maps pre-image PQRS to image cap p double prime cap q double prime cap r double prime cap s double prime ?

Which transformation maps the pre-image to the image?

Which rule describes the composition of transformations that maps figure ABCDE to figure cap A double prime cap b double prime cap c prime cap d double prime cap e double prime ?

Right triangle LMN has vertices cap l times open paren 7 comma negative 3 close paren , cap m times open paren 7 comma negative 8 close paren , and cap n times open paren 10 comma negative 8 close paren The triangle is translated on the coordinate plane so the coordinates of cap l prime are open paren negative 1 comma 8 close paren Which rule was used to translate the image?

The function rule cap t sub negative 4 comma 6 times open paren x comma y close paren could be used to describe which translation?

All side lengths in quadrilateral PQRS measure 4 units. A transformation maps PQRS to cap p prime cap q prime cap r prime cap s prime All sides of cap p prime cap q prime cap r prime cap s prime measure 1 unit. Is the transformation an isometric transformation? Explain.

Triangle PQR has vertices cap p times open paren negative 2 comma 6 close paren , cap q times open paren negative 8 comma 4 close paren , and cap r times open paren 1 comma negative 2 close paren It is translated according to the rule open paren x comma y close paren rightarrow open paren x minus 2 comma y minus 16 close paren What is the y -coordinate of cap p prime ?

A clock is constructed using a regular polygon with 60 sides. The polygon rotates each minute, making one full revolution each hour. How much has the polygon rotated after 7 minutes?