Math, asked by harkomalpannu23, 10 months ago

how to solve this pls tell me​

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Answers

Answered by TooFree
1

Answer:

△ABC: 9 , 15 and 12 cm

△DEF: 18,  30, 24 cm

Step-by-step explanation:

△ ABC is similar to △ DEF

Find the scale factor:

Scale factor = 3x/6x = 1/2

Solve x:

(2x  - 1)/18 = 1/2

2(2x - 1) = 18

4x - 2 = 18

4x = 20

x = 5

In △ABC:

AB = 2x -1 = 2(5) - 1 = 9 cm

AC = 3x = 3(5) = 15 cm

BC = 2x + 2 = 2(5) + 2 = 12 cm

In △DEF:

DE = 18 cm

DF = 6x = 6(5) = 30 cm

EF = 3x + 9 = 3(5) + 9 = 24 cm

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