Question

In the given figure, DE II BC. Which of the following is true? А A a ليا X b B y C B a+b (a) x = ay ах (b) y = a +b ау (c) X = a+b х a (d) II y b​

Answer 1

Step-by-step explanation:

In △ADE and △ABC

∠ADE=∠ABC (As DE∥BC) Corresponding angles

∠AED=∠ACB (As DE∥BC) Corresponding angles

∠DAE=∠BAC (common angle)

∴△ADE∼△ABC by AAA

⇒

7

3

=

x

2

⇒x=4.7cm