Question

Please answer fast 10 marks

Answer 1

Answer:

AB = 5.2 cm , ED = 5 cm

Step-by-step explanation:

Δ ABE and Δ ACD are similar by the AA postulate

Then the ratios of corresponding sides are in proportion , that is

(a)

$\frac{AB}{AC}$ = $\frac{BE}{CD}$ , substitute values

$\frac{AB}{11.7}$ = $\frac{6}{13.5}$ ( cross- multiply )

13.5 × AB = 70.2 ( divide both sides by 13.5 )

AB = 5.2 cm

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(b)

$\frac{AE}{AD}$ = $\frac{BE}{CD}$ , substitute values

$\frac{4}{AD}$ = $\frac{6}{13.5}$ ( cross- multiply )

6 × AD = 54 ( divide both sides by 6 )

AD = 9

Then

ED = AD - AE = 9 - 4 = 5 cm

Answer 2

Answer:

4 cm is the answer 1ecause it is the difference between a and b