# The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:

• 32%
• 34%
• 42%
• 44%
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## 1. The area of incircle of an equilateral triangle of side 42 cm is :

• \begin{aligned} 462 cm^2 \end{aligned}
• \begin{aligned} 452 cm^2 \end{aligned}
• \begin{aligned} 442 cm^2 \end{aligned}
• \begin{aligned} 432 cm^2 \end{aligned}

• 17.90m
• 17.80m
• 17.60m
• 17.40m

## 3. If the circumference of a circle increases from 4pi to 8 pi, what change occurs in the area ?

• Area is quadrupled
• Area is tripled
• Area is doubles
• Area become half

## 4. The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is:

• \begin{aligned} 152600 m^2\end{aligned}
• \begin{aligned} 153500 m^2\end{aligned}
• \begin{aligned} 153600 m^2\end{aligned}
• \begin{aligned} 153800 m^2\end{aligned}

## 5. 50 square stone slabs of equal size were needed to cover a floor area of 72 sq.m. Find the length of each stone slab.

• 110 cm
• 116 cm
• 118 cm
• 120 cm
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