construct a \( \triangle A B C \) such that : \( A B=6 \mathrm{~cm}, B C=4 \mathrm{~cm} \) and \( C A=5.5 \mathrm{~cm} \)

43. What is the difference between the total surface area and curved surface area of a cylinder whose radius is equal to 10 cm ? \( \begin{array}{ll}\text { (a) } 200 \pi \mathrm{~cm}^{2} & \text { (b) } 300 \pi \mathrm{~cm}^{2} \\ \text { (c) } 100 \pi \mathrm{~cm}^{2} & \text { (d) } 10 \pi \mathrm{~cm}^{2}\end{array} \)

5.3. A diameter and a chord, which is equal to the radius, are passed from the given point of the circle. Find the angle between them.

A rectangular prism has dimensions of length 5 meters, width 3 meters, and height 2 meters. Calculate the volume of the prism.

61. A fountain pen with a cylindrical barrel of diameter 2 cm and height 10.5 cm , filled with ink, can write 3300 words. How many words can be written with that pen using 100 ml of ink? (Take \( 1 \mathrm{cc}=1 \mathrm{ml} \) ) \( \begin{array}{ll}\text { (a) } 40,000 & \text { (b) } 30,000\end{array} \)

A rectangular prism has a length of 5 cm, a width of 3 cm, and a height of 4 cm. Calculate its volume.