that is confusing i have no idea
It would be B because it is the opposite of what the equation is. Hope this helps!
Answer: 294.4 m²
<u>Step-by-step explanation:</u>
Separate the shaded region into two parts:
- The section containing the central angle of 230° (360° - 130°)
- The triangle with sides 11.1, 11.1 & 20.12 (use Law of Cosines)
![1.\ Area(A)=\pi\ r^2\ \bigg(\dfrac{\theta}{360}\bigg)\\\\\\.\qquad \qquad =\pi(11.1)^2\bigg(\dfrac{230}{360}\bigg)\\\\\\.\qquad \qquad =247.3](https://tex.z-dn.net/?f=1.%5C%20Area%28A%29%3D%5Cpi%5C%20r%5E2%5C%20%5Cbigg%28%5Cdfrac%7B%5Ctheta%7D%7B360%7D%5Cbigg%29%5C%5C%5C%5C%5C%5C.%5Cqquad%20%5Cqquad%20%3D%5Cpi%2811.1%29%5E2%5Cbigg%28%5Cdfrac%7B230%7D%7B360%7D%5Cbigg%29%5C%5C%5C%5C%5C%5C.%5Cqquad%20%5Cqquad%20%3D247.3)
![2.\ \text{Use Law of cosines to find the length of the third side.}\\\text{ Then use Heron's formula to find the Area of the triangle.}\\\\s=\dfrac{11.1+11.1+20.12}{2}=21.16\\\\\\A=\sqrt{s(s-a)(s-b)(s-c)}\\\\.\ =\sqrt{21.16(21.16-11.1)(21.16-11.1)(21.16-20.12)}\\\\.\ =\sqrt{2227}\\\\.\ =47.1](https://tex.z-dn.net/?f=2.%5C%20%5Ctext%7BUse%20Law%20of%20cosines%20to%20find%20the%20length%20of%20the%20third%20side.%7D%5C%5C%5Ctext%7B%20Then%20use%20Heron%27s%20formula%20to%20find%20the%20Area%20of%20the%20triangle.%7D%5C%5C%5C%5Cs%3D%5Cdfrac%7B11.1%2B11.1%2B20.12%7D%7B2%7D%3D21.16%5C%5C%5C%5C%5C%5CA%3D%5Csqrt%7Bs%28s-a%29%28s-b%29%28s-c%29%7D%5C%5C%5C%5C.%5C%20%3D%5Csqrt%7B21.16%2821.16-11.1%29%2821.16-11.1%29%2821.16-20.12%29%7D%5C%5C%5C%5C.%5C%20%3D%5Csqrt%7B2227%7D%5C%5C%5C%5C.%5C%20%3D47.1)
Area of shaded region = Area of (1) + Area of (2)
= 247.3 + 47.1
= 294.4
Answer:
I am pretty sure that your answer would be 3.
Step-by-step explanation:
The reason why is because if B if half of line segment AD and AD is equal to 12, then B must be equal to 6 since half of 12 is 6. Next, since C is the mid-point for line segment BD then C must be 3 since half of 6 is 3. And finally, that means line segment BC is three since it is 1/2 of BD.
Hope this helps! :)
Answer:
2A/h = b
Step-by-step explanation:
The formula for area of a triangle is
A = 1/2 bh
Multiply each side by 2
2A = 2*1/2 bh
2A = bh
Divide each side by h
2A/h = bh/h
2A/h = b