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In triangle A...

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In triangle ABC ,if DE Parallel BC , and DE :BC = 4:5 , then the ratio of trapezium BCED and triangle ABC IS . And is 9:25

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Q. In the given figure,

D E ∥ B C

(i) If DE = 4 cm, BC= 6 cm and Area (

△

c m^{2}

, find the area of

△

(ii) If DE = 4 cm BC = 8 cm and Area (

△

c m^{2}

, find the area of

△

(iii) If DE : BC = 3 : 5. Calculate the ratio of the areas of

△

ADE and the area of BCED.

Q. In the given figure, DE || BC
(i) If DE = 4 cm, BC = 6 cm and Area (∆ADE) = 16 cm², find the area of ∆ABC.
(ii) If DE = 4 cm, BC = 8 cm and Area (∆ADE) = 25 cm², find the area of ∆ABC.
(iii) If DE : BC = 3 : 5. Calculate the ratio of the areas of ∆ADE and the trapezium BCED.

To the given figure, BC is parallel to DE Area of triangle $A B C = 25 c m^{2},$

Area of trapezium BCED $= 24 c m^{2}$ and DE =14 cm.

The length of BC = ___ cm.

Q. In the figure

D E ∥ B C

D E = 4 c m

B C = 8 c m

A (△ A D E) = 25 {c m}^{2}

A (△ A B C)

In the given figure, BC is parallel to DE. Area of triangle ABC = 25 $c m^{2}$ , Area trapezium BCED = 24 $c m^{2}$ and DE = 14 cm. Calculate the length of BC. Also, find the area of triangle BCD.

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