Given the perimeter of thr whole diagram is 53cm. (a)the radius of the quadrant,

(b)the area of the whole diagram

the answer of (a) is 7cm and (b) 185.5cm2...but how it can be?
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help me please..i really need help​

Arectangular exercise mat has a perimeter of 36 feet the length of the mat is twich the width writeand solve an equation to determine the length in feet. of the mat then find the area in square feet of the mart

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?