Over Lesson 6 4 WXYZ is a rectangle
- Slides: 23
Over Lesson 6– 4 WXYZ is a rectangle. If ZX = 6 x – 4 and WY = 4 x + 14, find ZX. A. 9 B. 36 C. 50 D. 54
Over Lesson 6– 4 WXYZ is a rectangle. If WY = 26 and WR = 3 y + 4, find y. A. 2 B. 3 C. 4 D. 5
Over Lesson 6– 4 WXYZ is a rectangle. If m WXY = 6 a 2 – 6, find a. A. ± 6 B. ± 4 C. ± 3 D. ± 2
Over Lesson 6– 4 RSTU is a rectangle. Find m VRS. A. 38 B. 42 C. 52 D. 54
Over Lesson 6– 4 RSTU is a rectangle. Find m RVU. A. 142 B. 104 C. 76 D. 52
Over Lesson 6– 4 Given ABCD is a rectangle, ___ what is the length of BC? A. 3 units B. 6 units C. 7 units D. 10 units
You determined whether quadrilaterals were parallelograms and/or rectangles. • Recognize and apply the properties of rhombi and squares. • Determine whether quadrilaterals are rectangles, rhombi, or squares.
• rhombus • square
Use Properties of a Rhombus A. The diagonals of rhombus WXYZ intersect at V. If m WZX = 39. 5, find m ZYX.
Use Properties of a Rhombus B. ALGEBRA The diagonals of rhombus WXYZ intersect at V. If WX = 8 x – 5 and WZ = 6 x + 3, find x.
A. ABCD is a rhombus. Find m CDB if m ABC = 126. A. m CDB = 126 B. m CDB = 63 C. m CDB = 54 D. m CDB = 27
B. ABCD is a rhombus. If BC = 4 x – 5 and CD = 2 x + 7, find x. A. x = 1 B. x = 3 C. x = 4 D. x = 6
Is there enough information given to prove that ABCD is a rhombus? Given: ABCD is a parallelogram. AD DC Prove: ADCD is a rhombus
A. Yes, if one pair of consecutive sides of a parallelogram are congruent, the parallelogram is a rhombus. B. No, you need more information.
Sachin has a shape he knows to be a parallelogram and all four sides are congruent. Which information does he need to know to determine whether it is also a square? A. The diagonal bisects a pair of opposite angles. B. The diagonals bisect each other. C. The diagonals are perpendicular. D. The diagonals are congruent.
Classify Quadrilaterals Using Coordinate Geometry Determine whether parallelogram ABCD is a rhombus, a rectangle, or a square for A(– 2, – 1), B(– 1, 3), C(3, 2), and D(2, – 2). List all that apply. Explain. Understand Plot the vertices on a coordinate plane.
Classify Quadrilaterals Using Coordinate Geometry It appears from the graph that the parallelogram is a rhombus, rectangle, and a square. Plan If the diagonals are perpendicular, then ABCD is either a rhombus or a square. The diagonals of a rectangle are congruent. If the diagonals are congruent and perpendicular, then ABCD is a square. Solve Use the Distance Formula to compare the lengths of the diagonals.
Classify Quadrilaterals Using Coordinate Geometry Use slope to determine whether the diagonals are perpendicular.
Classify Quadrilaterals Using Coordinate Geometry Since the slope of is the negative reciprocal of the slope of the diagonals are perpendicular. The lengths of and are the same, so the diagonals are congruent. Answer: Check ABCD is a rhombus, a rectangle, and a square. You can verify ABCD is a square by using the Distance Formula to show that all four sides are congruent and by using the Slope Formula to show consecutive sides are perpendicular.
Determine whether parallelogram EFGH is a rhombus, a rectangle, or a square for E(0, – 2), F(– 3, 0), G(– 1, 3), and H(2, 1). List all that apply. A. rhombus only B. rectangle only C. rhombus, rectangle, and square D. none of these
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