Area Problems One side of a parallelogram is 14 cm. Its distance from the opposite side is 16 cm. The area of the parallelogram is? 56? sq. cm 210 sq. cm 224 sq. cm 112 sq. cm 56? sq. cm 210 sq. cm 224 sq. cm 112 sq. cm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Area of parallelogram = Side of parallelogram x distance from the opposite side= 14 x 16 cm2= 224 cm2
Area Problems A veranda 40 meters long 15 meters broad is to paved with stones each measuring 6 dm by 5 dm. the number of stones required is? None of these 1000 3000 2000 None of these 1000 3000 2000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Length = (40 x 10 ) dm = 400 dm.Breadth = (15 x 10 ) dm = 150 dm.Area of veranda = (400 x 150 ) dm2Area of one stone = (6 x 5 ) dm2? Required number of stones = (400 x 150) /(6 x 5) = 2000
Area Problems The altitude of an equilateral triangle of side 2 ? 3 cm is? 3 cm ? 3/4 ? 3/2 cm 1/2 cm 3 cm ? 3/4 ? 3/2 cm 1/2 cm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? 1/2 x 2 ? x h = ?3/4 x (2 ?3)2? h = 3 cm.
Area Problems The Area of a square is 50 sq. units. Then the area of the circle drawn on its diagonal is? 25? sq. units 50? sq. units 100? sq. units None of theas 25? sq. units 50? sq. units 100? sq. units None of theas ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Area = (Diagonal)2 / 2 = 50? Diagonal = 10 units ? Radius of required circle = 5 unitsIts area = [? x (5)2 ] cm2= 25? units2
Area Problems If the sides of a rectangle are increased by 5%, find the percentage increase in its diagonals. 6% 4% 9% 5% 6% 4% 9% 5% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP According to the formula,Percentage increase in diagonals = 5%
Area Problems The area of an equilateral triangle is ? 243 /4 sq cm. Find the length of its side. 9 cm 3 cm 3?3 cm ?3 cm 9 cm 3 cm 3?3 cm ?3 cm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP According to the question,area = ?3a2/4 = ?243 /4? a2 = ?81 x 3/?3 ? a = ?9 = 3 cm
EXAMIANS