Question

cm
-
x 15 x 22 cm?
22 cm
= 15 x 11 cm2 = 165 cm?
A
D
ea of the triangle
containing the right angle
vertices are 10.2 cm am
Fig. 9.16
EXERCISE 9.4
1. Find the area of the parallelogram whose :
(a) base = 5.6 cm and height = 4.2 cm.
b) base = 6.4 cm and height = 3.6 cm.
2. The sides of a parallelogram are 4 cm and 3 cm. If the altitude corresponding to the base 4 cm is 1.8 cm, what
will be the length of the altitude corresponding to the base 3 cm?
3. The area of a rhombus is 202.4 cm2. If one of its diagonals is 18.4 cm. Find the length of the other diagonal.
4. Find the area of the rhombus whose diagonals are 8 cm 8 mm and 6 cm 5 mm.
5. A parallelogram whose side is 8.2 cm has its corresponding altitude equal to 6.2 cm. It is divided into 3 parts of
1
equal area. What will be the area of each part?
6. The area of a parallelogram is 6.25 m2 and an altitude is 5.0 m. Find its corresponding base.
7. Find the area of each of the following parallelograms :
h2
B
9.15
(0)
107
Mathematics-7क्वेश्चन नंबर फाइव ​

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