Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. your calculator answer would be 11.76 cm2

Question

Suppose you are asked to calculate the area of a rectangle that is 2.1 cm wide and 5.6 cm long. Your calculator provides an answer of 11.76 cm². Now, imagine you are required to report this answer rounded to two significant figures. (Keep in mind that if you do not round your answer correctly to two significant figures, it will fall outside the grading tolerance and be marked as incorrect.)

Anonymous · Accepted Answer

12 square cm correct to 2 significant figuresStep-by-step explanation:Area of a Rectangle = L X B = 2.1 X 5.6 = 11.76 square cm To round your result to 2 significant figure, we start counting from the left from the first non-zero digit. The first two digits are 11 but because the number after is 7 (greater than 4), we round up to 12.11.76 square cm = 12 square cm correct to 2 significant figures

Anonymous · Answer

Step-by-step explanation:We are given that Width of rectangle=b=2.1 cmLength of rectangle=l=5.6 cmWe have to find the area of rectangle.We know that Area of rectangle=Using the formula Area of rectangle =Area of rectangle=Hence, the area of rectangle=

Anonymous · Answer

Area can be calculated by multiply these two numbers 2.1-cm and 5.6 –cm and got 11.76 cm 2.  Further Explanations:Area CalculationArea of square:Area can be calculated by multiplying the base and height it depends on you that which area is you want to calculate. If you want to calculate the AREA OF SQUARE  That formula for square is side of square is multiplied by side of the sane square.  Area of Triangle:If you want to calculate the area of the rectangle than you have to use he formula of ½ * Base* Height.Area of rectangle:  If you want to calculate the area of rectangle than area of rectangle can be calculated by formula as base * Height. Because rectangle ha two side equals Two significant figures:The condition of the question is this that there should be only two significant numbers means after the do of the number there are only two digits.If you have more than digits than the rules of  significant digits should be applied on them.Answer Details: Subject: Physics Level: Middle SchoolKey Words: Area of squareArea of TriangleArea of rectangle:   Two significant figuresFor further Evaluation:

Anonymous · Answer

The area of a rectangle whose length is 5.6 cm and the width is 2.1 cm to two significant figures is 12 cm ².Further Explanation Area Area is a measure of how much space is occupied by a given shape.Area of a substance is determined by the type of shape in question.For example;Area of a rectangle is given by; Length multiplied by widthArea of a triangle = 1/2 x base x heightArea of a circle = πr². where r is the radius of a circle,Area of a square = S², Where s is the side of the square.etc.Perimeter Perimeter is defined as the distance along a two dimension shape.  Perimeter of different shapes is given by different formulasFor exampleThe perimeter of a rectangle = 2(length+width) The perimeter of a triangle = a+b+c; where a, b and c are the sides of the triangle. etc.In this question The rectangle has a;Length = 5.6 cm Width = 2.1 cm Area of a rectangle = length × width                                = 2.1 cm × 5.6 cm                                = 11.76 cm²The area of the rectangle to two significant figures is 12 cm²Keywords; Area, Area of a rectangleLearn more about;Area: Perimeter: Area of a rectangle: Level: Middle schoolSubject; Mathematics Topic: Area and Perimeter

Mr. Grover Monahan PhD · Answer

The area of the rectangle is 12 cm² ⇒ in 2 significant figuresStep-by-step explanation:* Lets talk about the significant figures- All non-zero digits are significant# 73 has two significant figures- Zeroes between non-zeros digits are significant# 105.203 has six significant figures- Leading zeros are never significant# 0.00234 has three significant figures- In a number with a decimal point, zeros to the right of the last  non-zero digit are significant# 19.00 has four significant figures- Lets make a number and then approximate it to different significant∵ 12.7360 has 6 significant figures∴ 12.736 ⇒ approximated to 5 significant figures∴ 12.74 ⇒ approximated to 4 significant figures∴ 12.7 ⇒ approximated to 3 significant figures∴ 13 ⇒ approximated to 2 significant figures∴ 10 ⇒ approximated to 1 significant figure- Another number with decimal point∵ 0.0546700 has 6 significant figures∴ 0.054670 ⇒ approximated to 5 significant figures∴ 0.05467 ⇒ approximated to 4 significant figures∴ 0.0547 ⇒ approximated to 3 significant figures∴ 0.055 ⇒ approximated to 2 significant figures∴ 0.05 ⇒ approximated to 1 significant figures* Lets solve the problem∵ The width of the rectangle is 2.1 cm∵ The length of the rectangle is 5.6 cm- Area of the rectangle = length × width∴ Area of the rectangle = 2.1 × 5.6 = 11.76 cm²- Approximate it to two significant figures∴ Area of the rectangle = 12 ⇒ to the nearest 2 significant figures* The area of the rectangle is 12 cm² ⇒ in 2 significant figures

Anonymous · Answer

If I’m understanding the question then 11.76cm^2 in two sig figs is 12cm^2. I don’t see a part c to this question though so if I’m not giving you the answer you need please advise and I will answer what you need! Thank you!!

Anonymous · Answer

12 cm²Step-by-step explanation:Length of rectangle = 5.6 cmWidth of rectangle = 2.1 cmArea of rectangle = Length of rectangle×Width of rectangle⇒Area of rectangle = 5.6×2.1⇒Area of rectangle = 11.76 cm²11.76 has 4 significant figures in order to write this term in 2 significant terms we round of the termThe last digit in the decimal place is 6. Now, 6≥5 so we round the next digit to 8 we get11.8Now the last digit in the decimal place is 8. Now, 8≥5 so we round the next digit to 2 we get12∴ Hence the area of the rectangle when rounded to 2 significant figures is 12 cm²

Anonymous · Answer

The significant figures need to be counted from first non-zero number at left. So put the 11.76 to two significant figures is 12. The unit is cm2. So the answer is 12 cm2.

Anonymous · Answer

1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant.2) ALL zeroes between non-zero numbers are ALWAYS significant.3) ALL zeroes which are SIMULTANEOUSLY to the right of the decimal point AND at the end of the number are ALWAYS significant.4) ALL zeroes which are to the left of a written decimal point and are in a number >= 10 are ALWAYS significant.so it will be 11.76 = 12 bc 7 rounds up

Anonymous

Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. your calculator answer would be 11.76 cm2

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