Geometry / Mr. Hansen	Name: _______________________________________
1/9/2008

Instant Feedback Quiz II

5.	If the weather is warm and nobody is taking lunch attendance, then many seniors will skip lunch.
	The inverse of the statement given above is . . .
	(A) If the weather is cold and somebody is taking lunch attendance, then not many seniors will skip lunch.
	(B) If the weather is cold and nobody is taking lunch attendance, then not many seniors will skip lunch.
	(C) If the weather is not warm or nobody is taking lunch attendance, then not many seniors will skip lunch.
	(D) If the weather is not warm or somebody is taking lunch attendance, then not many seniors will skip lunch.
	(E) If the weather is not warm and nobody is taking lunch attendance, then not many seniors will skip lunch.
6.	All parallelograms have the property that . . .
	(A) consecutive angles are congruent
	(B) opposite angles are supplementary
	(C) consecutive angles are supplementary
	(D) opposite angles are right
	(E) none of the above
7.	Is it possible for a trapezoid to have perpendicular diagonals?
	(A) Yes.
	(B) Yes, but only if the trapezoid is isosceles.
	(C) No, since only rhombuses and squares have this property.
	(D) No, since only parallelograms (including, of course, rhombuses and squares) have this property.
	(E) No, since only kites (including, of course, rhombuses and squares) have this property.
8.	Three distinct planes (p, q, and r) are arranged in space in such a way that no two are parallel. The lines of intersection are as follows: p Ç q = l, p Ç r = m, and q Ç r = n. Which of the following could possibly be true?
	(A) l, m, and n meet in a single point
	(B) l, m, and n are pairwise parallel (i.e., l || m, l || n, and m || n)
	(C) Both (A) and (B) could be true at the same time.
	(D) Either (A) or (B) could be true, but not both.
	(E) Neither (A) nor (B) is possible.