Question

Please help me on this question asap!

Answer 1

see explanation

Explanation:

ΔABE and ΔACD are similar hence the ratios of corresponding sides are equal, that is

`(AB)/(AC)` =
`(AE)/(ED)` =
`(BE)/(CD)`

Using the first pair of ratios then

`(20)/(5)` = 4 =
`(26)/(ED)`, hence

4ED = 26 ( divide both sides by 4 )

ED = 6.5 cm

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(b)

Similarly

`(BE)/(18)` = 4, hence

BE = 4 × 18 = 72 cm