Answer:
Step-by-step explanation:
The square is 12 m long and the triangle is 11 m long
I believe b and c don’t have a solution
Step-by-step explanation:
The formula for calculating a circle's circumference is πd, where π is an irrational number (3.14....) and d is the diameter of the circle.
In the circle with diameter 19.5cm, the circumference is around 3.14 * 19.5cm = 61.23cm. (A)