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17. Understanding Shapes-III (Special Types of Quadrilaterales)
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Q5 of 58 Page 17

In a rectangle ABCD, prove that ΔACB ≅ΔCAD.



In ΔACB and ΔCAD


AB = CD [Opposite sides of a rectangle are equal]


BC = DA


AC = CA Common


ΔACB ≅ΔCAD (SSS Congurency)


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3

Fill in the blanks in each of the following, so as to make the statement true :

(i) A rectangle is a parallelogram in which ________.


(ii) A square is a rhombus in which __________.


(iii) A square is a rectangle in which ___________.

4

A window frame has one diagonal longer then the other. Is the window frame a rectangle? Why or why not?

6

The sides of a rectangle are in the ratio 2 : 3, and its perimeter is 20 cm. Draw the rectangle.

7

The sides of a rectangle are in the ratio 4 : 5. Find its sides if the perimeter is 90 cm.

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17. Understanding Shapes-III (Special Types of Quadrilaterales)
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