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The properties of a Rectangle. 4 Right Angles. 1. All the angles are 90°. 2. The opposite sides are parallel and equal. The Properties of a Square. 4 Right Angles. 1. All 4 angles of a square are right angles. 2. The opposite sides of a square are equal. - PowerPoint PPT Presentation
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The properties of a RectangleThe properties of a Rectangle
4 Right Angles
1. All the angles are 90° 1. All the angles are 90°
2. The opposite sides are parallel and equal.2. The opposite sides are parallel and equal.
.
The Properties of a SquareThe Properties of a Square
4 Right Angles
1. All 4 angles of a square are right angles.1. All 4 angles of a square are right angles.
2. The opposite sides of a square are equal2. The opposite sides of a square are equal
3. The opposite sides of a square are parallel.3. The opposite sides of a square are parallel.
Page 99Page 99. Exercise 6.1Exercise 6.1
• Look at the figures below : Fill in the boxes with the correct answers.
1. PQ = PS = RS = QR PQ // RS , PS // QR All the angles are right angles PQRS is a Square.
2. ST = VU , TU = SV
ST // VU , SV // TU
All the angles are right angles.
STUV is a Rectangle
3. A square has 4 sides and 4 vertices.
4. A rectangle has 4 sides and 4 vertices.
A rectangle has 4 right angles.
Pages 100
B. Find the length of the unknown sides.1.LMNO is a square. LO = 8 cm.
LM = 8 cm.
MN = 8 cm.
2. PQRS is a rectangle. Its length is twice its breadth.
QR = 16 cm.
PS = 16 cm.
3. STUV is a square.
SV = 25 cm.
ST = 25 cm
TU = 25 cm.
4. ABCD is a rectangle.
AB = 5 cm.
AD = 8 cm.
Page 101 Page 101 Exercise 6.2
A. Find the unknown marked angles in the squares and rectangles.
1. PQRS is a square. Find b
90° - 55° = 35°
Answer : 35°
2. ABCD is a rectangle. Find x
90° - 58° = 32°
Answer : 32°
3. LMNO is a rectangle. Find Y
90 ° - 46 ° = 44 °
Answer : 44 °
4. ABCD is a square. Find x
90° - 30° - 20 ° = 40°
Answer : 40°
Page. 102Page. 102
5. EFGH is a rectangle. Find z
90° - 28° - 20 ° = 42°
Answer : 42°
6. WXYZ is a rectangle. Find b
90° - 28° - 36 ° = 26°
Answer : 26°
Page 103 : Page 103 : Exercise 6.3
A. Find the length of the stated sides in each A. Find the length of the stated sides in each figure.figure.
1. This figure consists of a rectangle and a square. Find DE and BF.
DE = DC – CE BF = BC – FC = 10 – 4 = 10 – 4 = 6 cm. Ans. = 6 cm. Ans.
2. The figure has a rectangle and a square. Find UR.
UR = QR - QT - VW = 16 - 6 - 5 = 5 cm. Ans.
3. The figure consists od the two rectangle. Find MR and NO.
MR = OR - OM NO = NM - OM = 10 – 7 = 12 - 7 = 3 cm. Ans. = 5 cm. Ans.
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