Answer:
![180 = (d+c+h+g)](https://tex.z-dn.net/?f=180%20%3D%20%28d%2Bc%2Bh%2Bg%29)
Step-by-step explanation:
We know all angles in a circle or around a point is 360°
So using that we can make the equation:
![360=(e+f+d+c+h+g)](https://tex.z-dn.net/?f=360%3D%28e%2Bf%2Bd%2Bc%2Bh%2Bg%29)
the angles e and f are on a straight line so they add up to 180°
So the other side of the line will be 180 as well. Hence we can make the equation:
![180 = (d+c+h+g)](https://tex.z-dn.net/?f=180%20%3D%20%28d%2Bc%2Bh%2Bg%29)
Answer:
123m squared
Step-by-step explanation:
First let's get the area of the square by doing 10*10 to get 100, now let's find the area of the semicircle. We can pretend it is a full circle and then cut it in half. We do the radius which is 5 times, pi which is 3.14 to get 15.7. We then square that to get 246.49. Since we want a semicircle we cut that in half to get 123.245. We add this to 100 to get 123.245. Since we have to round, the answer is: The area of the figure is about 123 m2.
Answer:
75cm²
Step-by-step explanation:
10×15=150
150÷2=75cm²