<ol class="i-list"><li><div class="list-item-content"><span class="list-item-text">The length of a rectangle is increased by $30\%$ and the breadth of the rectangle is increased by $40\%$. Find the percentage change in its area.</span></div></li><li><div class="list-item-content"><span class="list-item-text">The radius of a circle is increased by $20\%$. Find the percentage change in its perimeter and area, respectively.</span></div></li><li><div class="list-item-content"><span class="list-item-text">The base of a triangle is increased by $10\%$ and the perpendicular height from the base is decreased by $10\%$. Find the percentage change in its area.</span></div></li></ol>

The length of a rectangle is increased by $30\%$ and the breadth of the rectangle is increased by $40\%$. Find the percentage change in its area.

The radius of a circle is increased by $20\%$. Find the percentage change in its perimeter and area, respectively.

The base of a triangle is increased by $10\%$ and the perpendicular height from the base is decreased by $10\%$. Find the percentage change in its area.

Percentage Change and Reverse Percentage

Percentage Change and Reverse Percentage

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