Answer:
71
Step-by-step explanation:
A triangle angles all add up to 180 degrees and you have a 90 and 40 degree angle so you are at 130 degrees so the answer is B) x=50 degrees
Answer:
Is the question even complete ?
Step-by-step explanation:
The first thing you need to do is find the radius of the semicircle. To do that you look to see that the width of the rectangle is the same as the radius. Once you have the Area of a Semicircle calculated multiply it by 3. then, we know that the other length of the rectangle is 3 diameters of a semicircle this means that you multiply the radius of 7 by 6 which gives you 42. You take the area of the rectangle (294) and subtract the area of the 3 semicircles(230.79) Which gives you the answer of 63.21cm^2
