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

1) The answer is B, 2) the answer is D, method just put all points and get know the graph of each quadrilateral
3) the measure of one angle in a regular n-gon is given by the following  main formula  measure of interior angle= (n-2)*180°/n,
so for n=16, we have 14*180°/16=157.5°
4) the answer is A, because 360/5=72 > 40=360/9