The answer is 7. You need to use BIDMAS - Brackets Indices Division Multiplication Addition Subtraction
Answer:
6.6 cm and 14.6 cm
Step-by-step explanation:
(a)
the length of arc AB is calculated as
AB = circumference of circle × fraction of circle
= 2πr × 
= 2π × 4 × 
= 8π × 
= 
≈ 6.6 cm ( to the nearest tenth )
(b)
the perimeter (P) of sector AOB is
P = r + r + AB = 4 + 4 + 6.6 = 14.6 cm
Answer:4y
Step-by-step explanation:
7*4=28
7-4=3
so the width is 4 feet and the length is 7 feet