ABCD is a rhombus. Explain why triangle ABC is congruent to triangle CDA.
In the rhombus all the 4 sides are equal.
ABC is congruent to CDA beacuse..
AD=BC
DC=AB
AC=AC
therefore all three side from each trinagle are the same and they are congruent according to SSS
1. Classify the figure in as many ways as possible
- A. rectangle; square; quadrilateral; parallelogram; rhombus
2. Which statement is true?
- C. All rectangles are quadrilaterals.
3. Lucinda wants to build a square sandbox, but she has no way measuring angles. Which of the following explains how she can make sure the sandbox is square by measuring only length.
- B. Arrange four equal-length sides, so the diagonals are equal lengths also.
4. J and M are base angles of isosceles trapezoid JKLM. If mJ=20x+9 and mM=14x+15, find mK.
- A. 151 degrees
5. In the Rhombus m1=18x, m2=x+ y, and m3=30z. Find the value of x+y+z. The diagram is not drawn to scale
- A. 93
6. In rectangle KLMN, KM=6x+16, and LN=49. Find the value of x.
- D. 5.5
7. Find the value of a. The diagram is not to scale.
- B. 144 degres
8. LM is the mid segment of trapezoid ABCD. If AB=46 and DC=125, what is LM?
- D. 85.5
9. Use Amy, she got it
- In the rhombus all the 4 sides are equal.
ABC is congruent to CDA beacuse..
AD=BC
DC=AB
AC=AC
therefore all three side from each trinagle are the same and they are congruent according to SSS
LS: 6
UN: 2
1 a
2 c
3 b
4 a
5 a
6 d
7 b
8 d
9 essay, answered above (thanks amy)