Please can someone help me solve the question in the picture 10 points plus brainliest!!!

Mathematics

1 answer:

Effectus [21]3 years ago

8 0

Answer:

E. 2 1/2

E. 8.5 cm

C. 6 cm

Step-by-step explanation:

4............................

Scale factor = AE/AC = (4+6)/4 = 10/4 = 2.5

Correct option is E. 2 1/2

5............................

DE = ?

DE = √AD² - AE² = √15² - 10² = √125 = 5√3 ≈ 8.66

For measure of AD see next question (6)

Close option is E. 8.5 cm

6............................

AB = ?

AD/AB = 2.5 the scale factor as per question 4
(AB + 9)/AB = 2.5
2.5*AB = AB + 9
1.5*AB = 9
AB = 9/1.5
AB = 6 cm

Correct option C. 6 cm

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