Area of rectangle: 15 x 7 = 105
area of semicircle: 1/2 (3.14r^2)
radius is half of diameter so it would be 7.5
1/2 (3.14(7.5)^2)
=1/2 (176.71)
=88.355
rounded is 88.4
Answer:
153.86 square feet
Step-by-step explanation:
The formula for the area of a circle is :
To work this out you would simply multiply pi by the radius of 7 squared, this gives you 153.86. This is because if you were to substitute the values into the formula you would also get the same answer.
1) Multiply pi by 7 squared.
In this question pi is as 3.14
hello
step 1,
convert the hour time to minute
step 2
find the rate
78 * 3/4 hour,
it is 6 hours