Answer:
A = 27π cm²
Step-by-step explanation:
the area (A) of the sector is calculated as
A = area of circle × fraction of circle
the central angle of the shaded sector = 360° - 90° = 270° , then
A = πr² ×
= π × 6² ×
= 36π ×
= 9π × 3
= 27π cm²
To solve this problem you must apply the proccedure shown below:
1. You have that the ratio of the measures of the three angles is
2. The sum of the interior angle of a triangle is
3. Let's say that the measure of each angle is multiplied by the ratio. Therefore, you can write the following equation and solve for
:
4. Therefore, the measure of each angle is:
The answer is:
Answer:
1. B
2. A
3. B
4. A.
5. B
Step-by-step explanation:
Have a good day :)
