Question

in every question we r adding but in this question why we r multiplying...???​

Answer 1

Answer:

See dude in equilateral triangle all sides are equal

So if you add them seperatly then also the answer will be the same

But we multiply so that it becomes easy

Answer 2

Answer:

Here's your answer.

Step-by-step explanation:

because in a) there is an scalene triangle.

And in scalene triangle all the sides are of different measures.

While in equilateral triangle all sides are equal .