A curve is constructed of three semicircles, the first with a diameter of 2 cm, the second with a diameter of 3 cm, and the third with a diameter of 4 cm. Which of the following is closest to the length of the curve?

the smaller semi circle can fill in the empty space on the 10cm radius. this makes it easier to work out the answer as you only have to work out one big semicircle. so first to work out the area of the circle is = 3.142 x radius^2

TO Work out the semi circle +

to work out the semi circle= 3.142 x radius^2 and then divide the answer by 2. so 3.142 x 10^2 which is 3.142 x 100 = 314.2 314.2 divide by 2 = 157.1 THE ANSWER IS 157.1

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.