Still 20mm. The triangle has not changed shape at all, just been moved around and reflected. since it's equilateral all sides are the same length so it's still 20mm
Answer:
Solution:
The formula to find the perimeter of the quadrilateral = sum of the length of all the four sides.
Here the lengths of all the four sides are 5 cm, 7 cm, 9 cm and 11 cm.
Therefore, perimeter of quadrilateral = 5 cm + 7 cm + 9 cm + 11 cm
= 32 cm
25 pattern is, 7, 5, and then 3. -2 every time
Unit rate and constant of porportionaluty is the same thing just a tip