CDS || Elementary Mathematics || Quiz

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Question 1

In the quadrilateral ABCD shown above DAB = DCX = 120⁰.if ABC = 105⁰, what is ADC equal to?

• A45⁰
• B60⁰
• C75⁰
• D95⁰

Question 2

The length breadth and height of a rectangular parallelopied are in the ratio 6 : 3 : 1. If the surface area of a cube is equal to the surface area of this parallelopied; then what is the ratio of the volume of the cube to the volume of the parallelopied ?

• A1 : 1
• B5 : 4
• C7 : 5
• D3 : 2

Question 3

Two sides of a parallelogram are 10 cm and 15 cm. If the altitude corresponding to the side of length 15 cm is 5 cm, then what is the altitude to the side of length 10 cm?

• A5cm
• B7.5cm
• C10cm
• D15cm

Question 4

Which one of the following figures has only one line of symmetry?

• ARhombus
• BRectangle
• CIsosceles trapezium
• DParallelogram

Question 5

In the figure given above, a circle is inscribed in a quardrilateral ABCD. Given that BC=38 cm, QB=27 cm,DC=25 cm and AD is perpendicular to DC. What is the radius of the circle?

• A11cm
• B14cm
• C15cm
• D16cm

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