LENGTH OF DIAGONAL OF A PARALLELOGRAM WORKSHEET

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Problem 1 :

For the parallelogram given below, solve for m and n.

Solution

Problem 2 :

For the parallelogram given below, solve for j and k.

Solution

Problem 3 :

In parallelogram PQRS, solve for x and y.

Solution

Problem 4 :

Solve the n in the following parallelogram ABCD. Find length of the diagonal BD.

Solution

Problem 5 :

Length of the longer diagonal in the parallelogram FAST.

Solution

Problem 6 :

For what value of x is quadrilateral MNPQ a parallelogram? Explain your reasoning

diagonal-of-parallelogram-q9.png

Solution

Problem 7 :

find the value of x that makes the quadrilateral a parallelogram.

diagonal-of-parallelogram-q10.png

Solution

Problem 8 :

diagonal-of-parallelogram-q11.png

Solution

Problem 9 :

What value of x makes the quadrilateral a parallelogram? Explain how you found your answer.

diagonal-of-parallelogram-q12.png

Solution

Problem 10 :

Find the value of each variable in the parallelogram.

diagonal-of-parallelogram-q13.png

Solution

Problem 11 :

Find the coordinates of the intersection of the diagonals of ▱QRST with vertices Q(−8, 1), R(2, 1), S(4, −3), and T(−6, −3).

Solution

Problem 12 :

As shown in the diagram below, the diagonals of parallelogram QRST intersect at E. If QE = x+ 6x, SE = x + 14, and TE = 6x − 1, determine TE algebraically

diagonal-of-parallelogram-q14.png

Solution

Answer Key

1) m = 4, n = 5

2) k = 2 and j = 4.5

3) x = 5 and y = 6

4) n = 58, length of the diagonal BD is 336.

5) length of the longer diagonal is 46.

6) the value of x is 2.

7) the value of x is 8

8)  the value of x is 2/3.

9) x = 5

10) c = 6 and d = 10

11) (-2, -1)

12) the length TE is 11.

Problem 1 :

angleinparallelq1

Solution

Problem 2 :

angleinparallelq2

Solution

Problem 3 :

angleinparallelq3

Solution

Problem 4 :

angleinparallelq4

Problem 5 :

angleinparallelq5

Solution

Problem 6:

angleinparallelq6

Solution

Problem 6 :

angleinparallelq7

Solution

Problem 7 :

angleinparallelq8

Solution

Problem 8 :

angleinparallelq9

Solution

Problem 9 :

missing-angles-of-parallelogram-q5.png

Solution

Problem 10 :

missing-angles-of-parallelogram-q6.png

Solution

Problem 11 :

missing-angles-of-parallelogram-q7.png

Problem 12 :

ABCD is a parallelogram in which ∠DAB = 70o and ∠CBD = 55o. Find ∠CDB and ∠ADB.

Solution

Problem 13 :

In a parallelogram ABCD, ∠A = (2x + 10)o and ∠C = (3x – 20)o. Find the value of x.

Solution

Problem 14 :

The sum of the two opposite angles of a parallelogram is 150o. Find all the angles of the parallelogram.

Solution

Problem 15 :

If the angles of a quadrilateral are (x – 20)o, (x + 20)o, (x – 15)o and (x + 15)o, find x and the angles of the quadrilateral

Solution

Answer Key

1) ∠JLM = 35°

2) BCD = 60°

3) FHG = 77°

4) WZY = 79°

5) SQP = 45°

6) VUT = 80°

7) LNK = 24°, OMN = 42°, MKL = NMK = 42°

8) WVX = VXU = 62°

9) DOC = 136°, DBC = 61°, BED = 98°

10) ∠1 = 38, ∠2 = 32, ∠3 = 110

11)  ∠1 = 71, ∠2 = 28, ∠3 = 81

12) ∠1 = 95, ∠2 = 37

13) 

∠CDB = 55

∠ADB = 55 (alternate interior angles)

14)  the value of x is 30

15)  the all four angles are 75, 75, 105 and 105.

16)  the all four angles are 70, 110, 65 and 105.

Problem 1 :

Side length = 2 yd

Diagonal = _______

Solution

Problem 2 :

Side length = 53 ft

Diagonal = _______

Solution

Problem 3 :

Side length = 17.3 in

Diagonal = _______

Solution

Problem 4 :

Side length = 95 yd

Diagonal = _______

Solution

Find the length of the diagonal of each square. Round your answer to the nearest tenth.

Problem 5 :

diagonalofsquareq1

Solution

Problem 6 :

diagonalofsquareq2

Solution

Problem 7:

diagonalofsquareq3

Solution

Problem 8 :

diagonalofsquareq4

Solution

Problem 9 :

The side length of a square is 22 yards. What is the length of the diagonal?

Solution

Problem 10 :

The diagonals of two squares are in the ratio of 2 : 5. Find the ratio of their areas.

Solution

Problem 11 :

If length of diagonal of a square is 20 cm, then its perimeter is ________

Solution

Problem 12 :

 A rectangular carpet has area 120 square meters and perimeter 46 meters. The length of its diagonal is ___________ .

Solution

Problem 13 :

If diagonal of a rectangle is thrice its smaller side, then find the ratio of its length and width.

Solution

Problem 14 :

If diagonal of one square is double the diagonal of another square, then find the ratio of their areas.

Solution

Problem 15 :

The length of the diagonal of a square is 50. Find the perimeter of a square. 

Solution

Answer Key

1) Diagonal = 2.8 yd

2) Diagonal = 75 ft

3) Diagonal = 24.5 in

4) Diagonal = 134.4 yd

5) Diagonal = 68.9 ft

6) Diagonal = 45.3 in

7) Diagonal = 99 yd

8) Diagonal = 125.2 ft

9) Diagonal = 31.1 yards

10)  the ratio between the areas is 4 : 2

11)  the perimeter of the square is 40√2 cm.

12) the length of the diagonal is 17 cm.

13)  the required ratio is 2√2 : 2.

14) 4 : 1

15) 100√2 cm

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