Question

PREFER ATTACHMENT


Maths
Topic-:Triangle
Class10​

Answer 1

Answer:

No need, an example:

Clearly, EF = AB + DC / 2 = a + b / 2

Let h be the height , then

ar(Trap. ABFE) : ar(Trap. EFCD)

⇒ 1/2 [a + (a+b / 2)] × h : 1/2 [b + (a+b / 2)] × h

⇒ 2a + a + b / 2 : 2b + a + b / 2

⇒ 3a + b : 3b + a

Answer 2

Answer:

Refer the above attachment..✍