Answer :
Answer:
5cm
Step-by-step explanation:
40 - 15 - 15 = 10 you do 15 twice because a rectangle has two equal sides, ie two 15s
10/2 = 5 you divide by two to account for the other two other sides
Answer:
5cm
Step-by-step explanation:
40 - 15 - 15 = 10 you do 15 twice because a rectangle has two equal sides, ie two 15s
10/2 = 5 you divide by two to account for the other two other sides