1) Area of a circle = πr^2
Radius = 13.2 ÷ 2
= 6.6
Area = (3.14)(6.6)^2
= 136.78cm^2
I hope this helps!
Answer:
The x value of a is 5
Step-by-step explanation:
The directions right and left on the grid is equal to the x-axis while the directions up and down is equal to the y-axis
Answer:
(See explanation for further details)
Step-by-step explanation:
Classification based on sides:
Equilateral - Three sides with same length.
Isosceles - Two sides with same length.
Scalene - No sides with same length.
Classification based on sides:
Acute-Angled - All angles are acute. ![(0^{\circ} < \theta < 90^{\circ}, 0^{\circ} < \alpha < 90^{\circ}, 0^{\circ} < \beta < 90^{\circ}, \theta + \alpha + \beta = 180^{\circ})](https://tex.z-dn.net/?f=%280%5E%7B%5Ccirc%7D%20%3C%20%5Ctheta%20%3C%2090%5E%7B%5Ccirc%7D%2C%200%5E%7B%5Ccirc%7D%20%3C%20%5Calpha%20%3C%2090%5E%7B%5Ccirc%7D%2C%200%5E%7B%5Ccirc%7D%20%3C%20%5Cbeta%20%3C%2090%5E%7B%5Ccirc%7D%2C%20%5Ctheta%20%2B%20%5Calpha%20%2B%20%5Cbeta%20%3D%20180%5E%7B%5Ccirc%7D%29)
Right-Angled - One angle is right. ![(0^{\circ} < \theta < 90^{\circ};\alpha = 90^{\circ}, 0^{\circ} < \beta < 90^{\circ}, \theta + \alpha + \beta = 180^{\circ})](https://tex.z-dn.net/?f=%280%5E%7B%5Ccirc%7D%20%3C%20%5Ctheta%20%3C%2090%5E%7B%5Ccirc%7D%3B%5Calpha%20%3D%2090%5E%7B%5Ccirc%7D%2C%200%5E%7B%5Ccirc%7D%20%3C%20%5Cbeta%20%3C%2090%5E%7B%5Ccirc%7D%2C%20%5Ctheta%20%2B%20%5Calpha%20%2B%20%5Cbeta%20%3D%20180%5E%7B%5Ccirc%7D%29)
Obtuse-Angled - One angle is obtuse. ![(0^{\circ} < \theta < 90^{\circ},90^{\circ}](https://tex.z-dn.net/?f=%280%5E%7B%5Ccirc%7D%20%3C%20%5Ctheta%20%3C%2090%5E%7B%5Ccirc%7D%2C90%5E%7B%5Ccirc%7D%3C%5Calpha%20%3C%20180%5E%7B%5Ccirc%7D%2C%200%5E%7B%5Ccirc%7D%20%3C%20%5Cbeta%20%3C%2090%5E%7B%5Ccirc%7D%2C%20%5Ctheta%20%2B%20%5Calpha%20%2B%20%5Cbeta%20%3D%20180%5E%7B%5Ccirc%7D%29)