Area Problems If the sides of a rectangle are increased by 10% find the percentage increased in its diagonals. 20% 18% 10% 15% 20% 18% 10% 15% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP According to the formula,? Percentage increase in sides = 10%? Percentage increase diagonals = 10%
Area Problems The diameter of a circle is 105 cm less than the circumference. What is the diameter of the circle? 49 cm 48 cm 46 cm 44 cm 49 cm 48 cm 46 cm 44 cm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? ?d-d = 105 cm ? (? -1 ) d = 105 cm? [(22/7)-1] x d = 105 cm? d = (7/15) x 105 cm = 49 cm
Area Problems The area of a circle of radius 5 is numerically what percent its circumference? 450% 250% 350% 150% 450% 250% 350% 150% ANSWER DOWNLOAD EXAMIANS APP
Area Problems The ratio of the area of square of side a and equilateral triangle of side a is? 4 :3 4 : ?3 2 : ?3 2 :1 4 :3 4 : ?3 2 : ?3 2 :1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Ratio of area = a2/ ?(3/4) a2= 4/?3 = 4:?3
Area Problems One side of a rectangular field is 4 meter and its diagonal is 5 meter. The area of the field is? 4?5 m2 12 m2 15 m2 20 m 2 4?5 m2 12 m2 15 m2 20 m 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Other side = ?5 2 - 42 = ? 9=3 mSo The area of the rectangular field = 4 x 3 = 12 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 1.767 1.867 1.567 1.967 1.767 1.867 1.567 1.967 ANSWER DOWNLOAD EXAMIANS APP
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