Test night -Geometry Prep 1

1) The image of the point (7,-4) by reflection in Y-axis is……………….
2) In the opposite figure :
the value of X=………






3) The image of the point (3,-5) by the translation (X,Y) (x-1,y-4) is…………….

4) The image of the point (-1, 6) by the geometric transformation (X, Y) (-Y, X) is……….…………..

5) If a straight line cuts two parallel straight lines ,then each two corresponding angles are…………….
6) The polygon which has a reflex angle is called ……………… polygon
7) The image of the point (3, 5) by rotation about the origin point with an angle of measure 1800 is………

in ∆ABC .if m(<B)>m(<A)+m(<C), then <B is……………….
9) The sum of measure of the interior angles of polygon with sides number n equals…………….
10) In the opposite figure:

If AB//CD, AE┴ AB
And m (<EAC) =1300
, then m (<C) =…………….


11) In the opposite figure:
A Є BD

And DE//CB
, then m (<CAD) =……..


12) If A\ is the image of A (-2, 5) by reflection in
y-axis, then Axis the image of A\ by the translation………..

13) The measure of the interior angle of the equilateral triangle=………………………..

14) In ∆ABC ,if m(<A)=m(<B)+m(<C) ,then m(<A)=…………..



15) The number of sides of a regular polygon which the measure of one of its angles is 1200 equals………..
16) The image of the point (4,-5) is the same point by rotation about the origin point with an angle of measure……………

17) The image of the point ………by reflection in XX/ is (-2, 4)

18) In the opposite figure:
If CD=AB, M is the midpoint


of each of CD ,AB ,then CD is the
image of AB under a rotation about M with an angle with measure…………….
19) The two straight lines will be parallel if a third straight line cuts them and there are two …………. angles and in the same side of the transversal and they are supplementary

20) In the opposite figure:

The value of X=……….





21) If the sum of the measures of the interior angles of a polygon equals 18×1800 , then the sides number of this polygon equals………………
22) The perpendicular to one of two parallel straight lines is ………………………the other
The origin The image
23) The type of the transformation
In the opposite figure is…………….



24) The measure of the exterior angle of any triangle equals the sum of measures of the two interior angles except……………….
25) The image of the point (2,-3) by reflection in
Y-axis is……………
26) In the opposite figure:
The value of X=………….






27) The sum of measures of the interior angles of a convex polygon whose number of its sides is n equals……………………….