Answer:
a) 0
b) 6
Step-by-step explanation:
a)12 ÷ 6 - 2 = 2 - 2
b)12 ÷ 2 = 6 × 1
Https://math.wonderhowto.com/how-to/find-surface-area-cylinder-easily-302679/ the video on this website helped me a lot hope it helps you
Given:
In the given circle, ∠ADB = 270° and length of ADB = 61.26 m
To find the radius of the circle.
Formula
The formula to determine the radius is given by

Substituting arc length = 61.26,
, we get;



Thus, the radius is 13 m
ANSWER
307½ gallons of water
EXPLANATION
The volume of the rectangular swimming pool is

where l=25ft and w=20½ ft.
when it is filled to a depth of 4½ ft ,then the height is , h=4½ ft.
We substitute these values into the formula to get:


If one cubic foot of water is 7½ gallons, then 2306.25 cubic feet will be

We need 307.5 gallons of water to fill the pool.