In the figure given below $GHI$ is an equitateral triangle with side $14 cm$ . $G$ is the midpoint of $JL .$ What is the area of the shaded portion (in ${cm}^{2}$ )?

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Important Questions on Measurement of Areas

MEDIUM

UPSC CAPF AC Paper - I

IMPORTANT

Magical Book on Quicker Maths>Chapter 28 - Measurement of Areas>Exercises>Q 20

Four circles having equal radii are drawn with centres at the four corners of a square. Each circle touches the other two adjacent circles. If the remaining area of the square

168

cm², what is the size of the radius of the circle (in centimetres)?

MEDIUM

UPSC CAPF AC Paper - I

IMPORTANT

Magical Book on Quicker Maths>Chapter 28 - Measurement of Areas>Exercises>Q 16

A rectangular plot,

36 m

long and

28 m

broad, has two concrete roads

5 m

wide running in the middle of the park, one parallel to the length and the other parallel to the breadth. What would be the total cost of gravelling the plot, excluding the area covered by the roads, @

₹ 3.60

per

sq m

?

MEDIUM

UPSC CAPF AC Paper - I

IMPORTANT

Magical Book on Quicker Maths>Chapter 28 - Measurement of Areas>Exercises>Q 17

In the following figure, $∆ ABC$ is an equilateral triangle and $BCDE$ is a square whose each side is $8 cm$ long. Find the area of pentagon $ABDEC$ in square cm

Question Image

MEDIUM

UPSC CAPF AC Paper - I

IMPORTANT

Magical Book on Quicker Maths>Chapter 28 - Measurement of Areas>Exercises>Q 22

The radius of a circular field is equal to the side of a square field. If the difference between the area of the circular field and the area of the square field is