Geometry Regents Review

Triangles

100

In an isosceles triangle, one base angle measures 13 degrees. What is the measure of the vertex angle?

154 degrees

200

All the angles in every triangle add up to __________.

180

300

A 10 foot ladder leans against a garage. The base of the ladder is 6 feet from the base of the garage. How high is the garage?

8 feet

400

Which two trig functions go together?

Sine and Cosine

500

If a triangle has angle measures of 60, 60, and 60, then the triangle is?

equilateral

Transformations

100

What is the only transformation that is NOT a rigid motion??

Dilation

200

The image of (-3,4) under a translation is (4,0). What is the image of (5,1) under the same translation?

(12,-3)

300

If a translation maps (x,y)-> (x-2,y+3), what are the coordinates of A', the image of A(-2,-6) after this translation?

(-4,-3)

400

Name a transformation that is a "slide" of a figure.

Translation

500

The coordinates of point A are (2,5 ). Using T(x-4,y+2) , what are the coordinates of A', the image of A?

(-2,7)

Coordinate Geometry

100

Find the distance between (9,-4) and (3,-5) to the nearest tenth.

6.1

200

What is the slope of the line determined by the points (-1,2) and (-2,9)?

7/-1 or -7

300

A line segment has endpoints (1,3) and (7,7). What is the midpoint?

(4, 5)

400

In coordinate geometry, how do you prove a quadrilateral is a rhombus?

4 distances and a statement

500

What are the distance, midpoint, and slope formulas?

d= sq rt (x2-x1)^2 + (y2-y1)^2 M=(x1+x2/2,y1+y2/2) m=y2-y1/x2-x1