Two sides of a triangle are $6 cm$ and $8 cm$. If the height of the triangle corresponding to $6 cm$ side is $4 cm$. Find, the height of the triangle corresponding to $8 cm$ side.

The side of a triangle are $16 \mathrm{cm},12 \mathrm{cm} \text{and} 20 \mathrm{cm}$ find area of the triangle.

The sides of a triangle are $16 cm, 12 cm$, and $20 cm$. Find the height of the triangle corresponding to the longest side.

The sides of a triangle are $16 cm, 12 cm$, and $20 cm$. Find the height of the triangle corresponding to the smallest side.

Two sides of a triangle are $6.4 m$ and $4.8 m$. If the height of the triangle corresponding to $4.8 m$ side is $6 m$ find the area of the triangle.

Two sides of a triangle are $6.4 m$ and $4.8 m$. If the height of the triangle corresponding to $4.8 m$ side is $6 m$. Find, the height of the triangle corresponding to $6.4 m$ side.

The base and height of a triangle are in the ratio $4:5$. If the area of the triangle is $40 {\mathrm{m}}^2$, find its base and height.

The base and height of a triangle are in the ratio $5:3$. If the area of the triangle is $67.5 {\mathrm{m}}^2$, find its base and height.

The area of an equilateral triangle is $144\sqrt{3} {\mathrm{cm}}^2$, find its perimeter.