Question

ABCD is a parallelogram. If AB = 7.2 cm and the altitudes corresponding to the side
AB and AD are 10 cm and 8 cm. then find the value of AD.

Answer 1

Answer:

area of parallelogam=7.2×10=72

ad×8=72

ad=9

Answer 2

The value of AD=9 cm

Step-by-step explanation:

AB=7.2 cm

Length of altitude=DE=10 cm

Length of altitude BF=8 cm

Area of parallelogram=$Base\times height=b\times h$

Where

b=Base corresponding to altitude

h=Height of altitude

By using this formula

Area of parallelogram=$7.2\times 10=72 cm^2$

Again, area of parallelogram=$AD\times BF$

$72=8\times AD$

$AD=\frac{72}{8}=9 cm$

Hence, length of side AD=9 cm

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