How many triangles are there in the given figure:
Answer & explanation
Correct answer: option 2
Here
When n is even:
No. of triangles = \(\frac{n\;(n\;+\;2)(2n\;+\;1)}{8}\)
= \(\frac{4\;(4\;+\;2)(8\;+\;1)}{8}\)
= \(\frac{216}{8}\) = 27
How many triangles are there in the given figure:
Correct answer: option 2
Here
When n is even:
No. of triangles = \(\frac{n\;(n\;+\;2)(2n\;+\;1)}{8}\)
= \(\frac{4\;(4\;+\;2)(8\;+\;1)}{8}\)
= \(\frac{216}{8}\) = 27