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Let the length of the cube be ‘a’ cm According to the question, 4a2 = 484 => a2 = 121 => a = 11 Therefore, length of the cuboid = l = 1.1 × 11 = 12.1 cm Breadth of the cuboid = b = 12.1 – 9 = 3.1 cm Height of the cuboid = h = 3.1/0.8 = 3.875 cm Therefore, total surface area of the cuboid = 2(lb + bh + lh) = 2 × {(12.1 × 3.1) + (3.1 × 3.875) + (12.1 × 3.875)} = 192.82 cm2
The circumference of the two circles is 120 cm and 428 cm respectively. What is the difference between their radii?
In a triangle, PT is tangent and PAB is secant which cuts on a circle at points A & B. If PT= 12 cm, PA= 8 cm then find the legth of AB.
A circle touches all four sides of a quadrilateral. If AB = 18 cm, BC = 21 cm, and AD = 15 cm, then what is the length of CD?
If a wheel covers a distance of 2200 cm in 7 rotations, then the diameter of the wheel is?
A semicircle has a radius of 7 cm. What is the perimeter of the semicircle?
The minute hand of a clock is 28cm long. Find the area on the face of the clock swept by the minute hand between 8 a.m. and 8: 45a.m
Find out the circumference of a sector whose radius is 7 cm and it makes the angle of 45° at the centre.