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I need help!! I have only 5 mins
1 answer:
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Answer:
C. 647 square units
Step-by-step explanation:
To find the shaded area, subtract the area of the unshaded square from the area of the octagon.
<u>Area of the octagon</u>
where:
- n = number of sides
- l = length of one side
- a = apothem
Given:
- n = 8
- l = 13
- a = 15.69
Substitute the given values into the formula and solve for A:
<u>Area of the square</u>
<u>Area of the shaded region</u>
= area of the octagon - area of the square
= 815.88 - 169
= 646.88
= 647 square units (nearest square unit)
Answer:
44,602.2 (c)
Step-by-step explanation:
The volume of a sphere is found by using the equation:
The radius is shown to be 22cm just plug it in and see that the equation produces the value: 44,602.2