![In a right-angled triangle ABC, right angled at B, point D and E are on AB and BC such that DE||AC. If AD = 3 cm and EC = 4 cm](https://www.gkseries.com/blog/wp-content/uploads/2024/03/In-a-right-angled-triangle-ABC-right-angled-at-B-point-D-and-E-are-on-AB-and-BC-such-that-DE-AC.-If-AD-3-cm-and-EC-4-cm.jpg)
In a right-angled triangle ABC, right angled at B, point D and E are on AB and BC such that DE||AC. If AD = 3 cm and EC = 4 cm. and area of quadrilateral ADEC is 42cm sq. find the area of ∆DBE. (in sq. cm)
a) 54
b) 36
c) 72
d) 64
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2024/03/image-91-788x1024.png)
In a right-angled triangle ABC, right angled at B, point D and E are on AB and BC such that DE||AC. If AD = 3 cm and EC = 4 cm. and area of quadrilateral ADEC is 42cm sq. find the area of ∆DBE. (in sq. cm)
a) 54
b) 36
c) 72
d) 64
Sol:
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