The answer would be 408.16
9.3 × 107 would be the scientific notation
Answer:
3.2 cm
Step-by-step explanation:
If we know that our ratio is 4 cm: 5 km. We can find the unit rate of the scale. Which would be 0.8 cm: 1 km. After we find the unit ratio we can then multiply both sides by 4. (4 * 0.8) : (4*1) After simplifying we get the ratio of 3.2cm: 4 km.
<u>331.5 inches² </u><u>is the </u><u>area of the octagon</u><u>, rounded to the nearest square inch.</u>
What is octagonal in shape?
- In geometry, an octagon is a polygon that has 8 sides and 8 angles.
- All the sides are joined end to end to form the shape of the octagon.
- The sum of the interior angles of an octagon is equal to 180 degrees.
Solving for an area of a regular octagon, we can make use of the formula shown below:
Area = 1/2 × apothem × perimeter
In this problem, the following values were given such as:
Apothem = 10 inches
Perimeter = 66.3 inches
Put the values in the formula
Area = 1/2 × 10 × 66.3
Area = 331.5 inches²
Learn more about area of the octagon
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No 26% of 40 ia 10.4 and 40% of 16 is 6.4