Question

plz guys step by step explain plz dont spam​

Answer 1

Answer:

option D) 8cm

Step-by-step explanation:

So it's given that ∆ABC is similar to ∆DEF

now ots a property of similar triangles that the ratio of their areas is equal to the square of ratio of their sides i.e

64/121=(BC/EF)²

so BC=8x cm (the x denotes that BC is some integral multiple of 8)

(also the question is incorrect because you have been given a ratio of areas but have no information about any sides which makes it impossible to find any side by the ratio.)

we can say for a fact that BC is some integral multiple of eight but we can't deduce its actual value. But I guess if you write this you won't get any marks and there is no 'none of the above' so as far as this question goes the answer is 8cm but the question is wrong.

Answer 2

Answer:

Bas padhai krrha tha sis aap??