Answer:
38.465 ft²
Step-by-step explanation:
the area of a circle can be calculated using the following formula:

the radius is half of the diameter:


Answer:

Step-by-step explanation:
Original dimensions of the rectangle


Area of the rectangle

Scale factor = 1.1
New dimensions


The new area of the rectangle

Percentage change is given by

The percentage by which the area of the rectangle increases is
.
Answer: D) (3, 1.5)
Step-by-step explanation:
Answer: 7/8 inches
Step-by-step explanation: There are 3 x's for 1/8 so that is 3/8. There are 2 x's for 1/4 which is 2/4, but you need to have the same denominator so you do 2 times the numerator and denimator which is 4/8. 3/8 + 4/8 = 7/8