Answer:
Step-by-step explanation:
Total pink triangles = 24
Let first 10 triangles be a circle
let second ten triangles be a square
⇒ red circle = 10 triangles
⇒blue square = 10 triangles
Remaining triangles = 4
Thus circle+square+4 triangles=10+10+4
=24
Refer the attached figure.
This is a quick picture to show 24 after you have regrouped 1 ten as 10 ones
