Question

Ad=7cm CD=5cm bc=18cm Find BE
plz give correct ans​

Answer 1

Answer:

By BPT

$\frac{ad}{dc} = \frac{be}{ec}$

$\frac{7}{5} = \frac{x}{18 - x}$

cross multiplication

7 ( 18 - x ) = 5x

126 - 7x = 5x

- 7x - 5x = -126

- 12 x = - 126

cancelling - on both the sides

12x = 126

$x = \frac{126}{12}$

x = 10.5

hope it helps u

verification = 10.5 + 7.5 = 18