HCL Geometry Quiz-1

Side of that Square = \sqrt{5184} = 72 meter

perimeter of that ground = 2(l+b) = 2(23+17) = 80 meter

sum of the area of all faces =  6a^{2} = 6 \times 9^{2} = 486 cm^{2}

Curved Surface area of Cylinder = 2\pi r l

 

Since height is the same 

Then ratio will be the ratio of radius = 10:11

Width of Rectangular plot = \frac{1984}{62} = 32 meter

Area of window glass =\frac{1}{2}\times \text{sum of parallel sides}\times height

Area of window glass =\frac{1}{2}\times (20+10) \times 5 = 75 m^{2}

Volume of cylinder =  \pi r^{2} h

Volume of cylinder =  \pi 12^{2} 14 = 6336 m^{3}

Space is occupied by cubical shape snow = Volume of cube

Volume of cube = a^{3} = 28^{3} = 21952 cm^{3}

Base = 3 x height = 3 x 6 = 18 cm

Area of Parallelogram = base x height = 18 x 6 = 108 square centimeters

Area of Rhombus = \frac{d_{1} \times d_{2}}{2}

According to the question

630 = \frac{42 \times d_{2}}{2}

Another dia = 30 cm