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1. Similarity
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Q2 of 49 Page 26

In Δ ABC, B - D – C and BD = 7, BC = 20 then find following ratios.


(1)


(2)


(3)

Theorem: When two triangles are similar, the ratio of areas of those triangles is equal to the ratio of the squares of their corresponding sides.

(1)


=


=


=


(2)


=


=


(3)


=


=


=


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1

Select the appropriate alternative.

ΔABC and ΔDEF are equilateral triangles, A(ΔABC) : A(ΔDEF) = 1 : 2. If AB = 4 then what is length of DE?


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3

Ratio of areas of two triangles with equal heights is 2 : 3. If base of the smaller triangle is 6 cm then what is the corresponding base of the bigger triangle?

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Questions · 49
1. Similarity
1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 1 1 1 1 1 2 3 4 5 6 7 8 9 10 11 12 13
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