Let the radius of the circle be rThen area of cirlce = ?r2Given that radius of the circle is diminished by 10%Hence the new radius =r ?(10%of r)= 90%of r = 109r Area of the new circle =?(109r )2 = 10081 ?r2Change in area ?r2 ? 10081 ?r2 = 10019 ?r2 = 0.19?r2Percentage of area diminished is.
Kishore Kumar. Let the radius of the circle be r. Then area of cirlce = ?r2. Given that radius of the circle is diminished by 10%. Hence the new radius = r – (10% of r) = 90% of r = (9r/10) Area of the new circle = ? (9r/10)2 = (81/100)?r2. Change in area = ?r2 – (81/100)?r2 = (19/100)?r2.
If the radius of a circle is diminished by 10 %, then the area is diminished by : 200%; 210%; 300%; 310%; Answer: Option C. Explanation: Let the original radius be R cm.
let the radius of circle = r units. area of circle = pie r 2 ……. (i) it is given that the radius is decreased by 10 percent. therefore radius becomes 9r/10. area of new circle = 81/100 pie r 2. area diminished = pie r 2 – 81/100 pie r 2 = 19/100 pie r 2. percentage of area diminished = (19/100 pie r.
If the radius of a circle is diminished by 10 %,the area is dimished by – 16828231, Know answer of objective question : If the radius of a circle is diminished by 10 %, then its area is diminished by :. Answer this multiple choice objective question and get explanation and result.It is provided by OnlineTyari in English, If the radius of a circle is diminished by 10 %, then its area is diminished by: (Hotel Management, 2003) A) 10 %. B) 19%. C) 20%. D) 36%. Explanation: Let the original radius be R cm Original area = ?R 2, 3/6/2017 · Then area of circle = PI * r * r. Radius is diminished by 10% so New radius, R = r – ( 10 * r / 100 ) = > R = 0.9 * r. New area = PI * R * R. Putting value R = 0.9 * r. New area = 0.81 * PI * r *r. Difference = Old area – New area. => Difference = PI * r * r – 0.81 * PI *.
7/22/2012 · if the radius of a circle is diminished by 10 %, the area is diminished by? percentage. Answer Save. 2 Answers. Relevance. Marley K. Lv 7. 8 years ago. Favorite Answer. use an example. let radius = 10 . area = 100?. new radius =9.
