M L Aggarwal Solutions for Chapter: Heron's Formula, Exercise 4: Very Short Answer Questions

If the diagonals of a rhombus are $10 \mathrm{cm}$ and $8 \mathrm{cm}$, then find its area.

If the area of an equilateral triangle is $25\sqrt{3} {\mathrm{cm}}^2$, then find the perimeter of the triangle.

If the side of a rhombus is $10 \mathrm{cm}$ and one diagonal is $12 \mathrm{cm}$, then find the area of the rhombus (in ${\mathrm{cm}}^2$).

If the area of an isosceles right-angled triangle is $12.5 {\mathrm{cm}}^2$, then find the length of its hypotenuse.

If the altitude of an equilateral triangle is $\sqrt{6} \mathrm{cm}$, then find its area.

If one diagonal of a parallelogram is $6.6 \mathrm{cm}$ and the perpendicular distance of this diagonal from an opposite vertex is $2.5 \mathrm{cm}$, then find its area.

Find the area of a triangle whose sides are $10 \mathrm{cm}, 24 \mathrm{cm}$ and $26 \mathrm{cm}$.

Find the area of a triangle whose sides are $12 \mathrm{cm}, 14 \mathrm{cm}$ and $16 \mathrm{cm}$.