Question
A circular wire enclosing the area of 9,856 cm² is
bent to form a square. How much area will be enclosed by that wire?Solution
A = `pir^2` ⇒ 9,856 =`22/7xxr^2` r2 = 9,856 `xx7/22` = 3136 r =`sqrt3136` = 56 cm Circumference = 2`pi` r = 2`xx22/7xx56` = 352 cm Hence, perimeter of required square = 4a = 352 cm a = 88 cm Hence, required area = a² = 88 `xx` 88 = 7,744 cm²
Select the correct mirror image of the given combination when the mirror is placed at ‘PQ’ as shown.
Select the correct mirror image of the given combination when the mirror is placed at ‘AB’ as shown.
Select the correct mirror image of the given combination when the mirror is placed at MN as shown below:
Select the correct mirror image of the given combination when the mirror is placed at ‘AB’ as shown.
Select the correct mirror image of the given figure when the mirror is placed at MN as shown below:
Which of the following figure is the correct mirror image of the given figure?Â
Choose the alternatives which is closely resembles the mirror image of the given combination.
Select the correct mirror image of the given figure when the mirror is placed to the right side of the figure.