The centre of each semicircle is on dc. work out the area of the shaded region. give your answer correct to 3 significant figures.

Area of the shaded region be 251.74 cm² .

Step-by-step explanation:

Formula

i.e

As shown in the figure.

AB = 28 cm , DC = 12cm and h = 14 cm

Putting in the above

Area of trapezoid = 280 cm²

Formula

Where r is the radius of the circle.

r = 3 cm

Area of two semicircle = 28.26 cm²

Area of the shaded area =  Area of trapezoid - Area of two semicircle

                                         =  280 cm² - 28.26 cm²

                                         = 251.74 cm²

Therefore the area of the shaded region be 251.74 cm² .

i think it would be 43 movies that would have to be watched.

step-by-step explanation:

think about it. for the second plan, every month is 8 dollars. 8 x 12= 96. so thats the number for the second plan. now for the first plan, its annual meaning you have to pay 10 dollars every year. so now you have to get an equivalent amount of 86 since 96-10=86. 86 divided by 2 since every movie costs 2$ then you would have to watch 43 movies a year to get the same as the second plan. i really hoped this . have a wonderful day as well!