Mark as true any statement that is always true. Mark as false any statement that is never true or that is not necessarily true. Be able to justify your answers.
1.The Parallel Postulate is required to prove that the sum of the angles in a triangle is 180°.
2. If AB ? PQ, ?BAC ? ?QPR, and ?ACB ? ?PRQ, then ?ABC ? ?PQR.
3. The diagonals of a rhombus are congruent.
4. If the diagonals of a rhombus are 10 cm and 24 cm, then its perimeter is 52 cm.
5. The diagonals of a trapezoid form four triangles, one pair of which is always congruent.
1. T
2. T
3. F—They are perpendicular.
4. T
5. F: Only if it is an isosceles trapezoid
You might also like to view...
Find the slope and the y-intercept of the given line.y = 
x - 6
A. - 
; (0, -6)
B. 
; (0, -6)
C. - 
; (0, 6)
D. 
; (0, 6)
Find the product and simplify. Assume all variables represent nonnegative real numbers.-2
? 6
A. -84
B. -84
C. -12
D. -588
Establish the identity.sec(2?)= 
What will be an ideal response?
Write the expression in standard form.9i + (-3 - i)
A. -3 + 8i B. 3 - 8i C. -3 + 10i D. 3 - 10i