copyright@Ed2netLearning,Inc GEOMETRY Grade 3 copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Hello, How are you doing? copyright@Ed2netLearning,Inc

Congruent and Similar Figures Congruent Figures – The figures that have same shape and same size. Similar Figures – The figures that have same shape but may have different sizes. Congruent figures Similar figures copyright@Ed2netLearning,Inc

Write whether the figures are congruent or similar. Answer – Congruent – A Similar - B A B copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Line of Symmetry A line on which a figure can be folded so that both sides match. copyright@Ed2netLearning,Inc

Translation, Reflection and Rotation Translation (slide) – To move a figure along a line. Reflection (flip) – A movement of a figure across a line, producing a mirror image. Rotation (turn) – A figure that is rotated around a point. copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Reflection Translation Rotation copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Perimeter Perimeter - The distance around an object or a shape. Example – The perimeter of the given figure is 6 + 5 + 8 = 19 units 8 units 6 units 5 units copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Area Area – The number of square units needed to cover a region or figure. Example – The area of the given figure (square) is 16 square units 4 units copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Volume Volume – The amount of the space that a 3-dimensional figure encloses. Example – The volume of figure shown (cube) is 64 cubic units. 4 units copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc The two lenses in Irene’s eyeglasses are circular in shape. They are of the same size. Are they similar, congruent or both? Answer- Both copyright@Ed2netLearning,Inc

Find the perimeter of the given hexagon. 5 cm Answer – 30 cm copyright@Ed2netLearning,Inc

Find each area in square units. = 1 square unit A B copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc A room is 14 meter long and 6 meter wide. What is the area of the room? copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc What is the volume of the rectangular prism that is 5 cm long, 4 cm wide and 6 cm high? copyright@Ed2netLearning,Inc

Find the volume of the given figure. copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Find out how each figure was moved. Write reflection, rotation or transition. A B copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc ASSESSMENT copyright@Ed2netLearning,Inc

1. Which statement is correct? Congruent figures are similar. Similar figures are congruent. Congruent figures have non-similar shapes. Similar figures have same sides. copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Write the number sentence that makes equation true. Perimeter = 11 ft + 14 ft + █ = 36ft 14 ft 11 ft copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc 3. What is the area of the floor that is not carpeted ( in square units)? 16 14 12 15 Shaded part shows carpeted floor copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc 4. Bunny’s book is 6 units long, 4 units wide and 2 units high. What is the volume of the book? copyright@Ed2netLearning,Inc

5. Write whether the figures are similar, congruent or neither. A B C copyright@Ed2netLearning,Inc

6. Write yes or no to tell if each line is a line of symmetry. A B C D copyright@Ed2netLearning,Inc

7. Find the perimeter of the given figure. 1 cm 3 cm 4 cm 5 cm 1 cm 6 cm copyright@Ed2netLearning,Inc

8. Is the given figure congruent? copyright@Ed2netLearning,Inc

9. Find the volume of the given figure (cubic units). copyright@Ed2netLearning,Inc

10. Draw the line of symmetry of the following figures. A B C copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc Recap Similar and Congruent figures Line of symmetry Transition, Rotation and Reflection Perimeter Area Volume Practice problems Solved Examples copyright@Ed2netLearning,Inc

copyright@Ed2netLearning,Inc You did a Good Job! Now, practice worksheets on the Lesson. copyright@Ed2netLearning,Inc