### #1 - Count Triangles In Diagram Problem

How many triangles are there in the diagram below ?

35

Whats the next number in the below number sequence pattern.

1113213211

its like you call it out

one one => 11

two one => 21

and so on

The below figure consists of a rectangle and the numbers labeled over the top represents the area of that particular shaded region.

Calculate the area of the green region labeled as '?'

The White triangle is similar to the Red triangle

As ratio of areas = ratio of bases when height is same,

Ratio of sides is 2:3

White triangle = 9/4 * Red triangle = 9/2

Thus the Green Region = 5.5 units.

Find the missing number in the picture below ?

30(sum of corner of triangle)

Can you replace the question mark with the correct number ?

6

5*6+2=31,7*6+2=44