Question

2.What is the most precise name for quadrilateral ABCD with vertices A(-2,4), B(5,6), C(12,4), and D(5,2)?
A. parallelogram
B. rhombus
C. quadrilateral
D. rectangle

3. What is the most precise term for quadrilateral ABCD with vertices A(1,2), B(2,6), C(5,6), and D(5,3)?
A. square
B. rhombus
C. parallelogram
D. kite

9. What is the measure of one angle in a regular 16-gon?
A. 2,520
B. 202.5
C. 157.5
D. 78.75

10. The measure of exterior angle of a regular 5-gon is ____ the measure of each exterior angle of a regular 9-gon?
A. greater than
B. less than
C. equal to

Answer 1

2) option d:-rectangle

Answer 2

9) sum of interior angles in polygon=(n-2)180
where n=no. of sides
for regular polygon, any one interior angle=[(n-2)180]/n=[(16-2)180]/16=
[(14)(180)]16=157.5

Answer 3

3) its kite, you can just draw it and easily see it

Answer 4

10) its a, greater then,
because we can identify equilateral triangle with 60-60-60, and square with 90-90-90-90, and regular 5gon 108-108-108-108-108, so interior angles increase when new lines are added, and when interior angles increase, exterior angles decrease when new lines are added (or here is the other explanation
since i don't remember the formula of finding exterior angles, i'll find the interior angles
5gon --> ((n-2)*180)/n=180 ((5-2)*180)/5=108 --> so the exterior angle is
360-108=252
9gon --> ((n-2)*180)/n=180 ((9-2)*180)/9=140 --> so the exterior angle is
360-140=220
252>220, so the measure of the exterior angle of 5gon is greater then 9gon

Answer 5

2) is a rhombus. All sides are equal. The diagonals intersect at right angles but the diagonals are not equal in length.

10) "greater than" is the correct answer. The exterior angles of all polygons add up to 360. This is true for triangles, rectangles, pentagon, hexagon, etc... The polygon does not even have to be regular but still all external angles add to 360.
External angle = 360 / n.

Answer 6

I already finished this I forgot I even posted these on here. Thank ya'll though :)

Answer 7

hey could you maybe post screen shots of the finial exam?