Area Problems The inner circumference of a circular race track, 14 m wide, is 440 m. Find radius of the outer circle 33 84 22 44 33 84 22 44 ANSWER DOWNLOAD EXAMIANS APP
Area Problems The perimeter of an isosceles triangle is 26 cm while equal sides together measure 20 cm. The third side and each of the equal sides are respectively. 10 cm and 8 cm 14 cm and 6 cm 6 cm and 10 cm 8 cm and 9 cm 10 cm and 8 cm 14 cm and 6 cm 6 cm and 10 cm 8 cm and 9 cm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the third side be x.According to the question,x + 20 = 26? x = 26 - 20 = 6 cm ? Each equal side = 20/2 = 10 cm
Area Problems Diagonals of a rhombus area 1 m and 1.5 m in lengths. The area of the rhombus is 1.5 m2 0.75 m2 1.5 m2 0.375 m2 1.5 m2 0.75 m2 1.5 m2 0.375 m2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Area of rhombus =(d1 x d2)/2 =(1 x 1.5)/2 m2= 0.75 m2
Area Problems Four horses are be tethered at four concern of a square plot of side 63 meters, so that they just cannot reach one another. The area left ungrazed is? 785.8 m2 780.6 m2 675.5 m2 850.5 m2 785.8 m2 780.6 m2 675.5 m2 850.5 m2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Area left ungrazed = [(63 x 63) - (4 x 1/4 x 22/7 x (63/2)2] m2= (63 x 63 - (99 x 63)/2 ) m2= 63 x (63 - 99/2) m2= 850.5 m2
Area Problems Three circles of radius 3.5cm are placed in such a way that each circle touches the other two. The area of the portion enclosed by the circles is 1.867 1.967 1.567 1.767 1.867 1.967 1.567 1.767 ANSWER DOWNLOAD EXAMIANS APP
Area Problems If each side of a square is increased by 25%, find the percentage change in its area. 12.25% 56.25% 16.25% 36.25% 12.25% 56.25% 16.25% 36.25% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let each side of the square be a. Then, area = . a 2 New side = 125 a 100 = 5 a 4 . New area = 5 a 4 2 = 25 a 2 16 Increase in area = 25 a 2 16 - a 2 = 9 a 2 16 Increase% = 9 a 2 16 * 1 a 2 * 100 % = 56.25%.
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