Two squares, ABCD and EFGH , are congruent, Identify the congruent parts of the squares.

3. Дана фигура, как показано на рисунке 1 . Найдите: А) тангенс угла между прямой \( A G \) и плоскостью \( A B C D \) В) тангенс угла между плоскостями \( F J I G \) и \( E H G F \).

119. Дан треугольник \( H K P \). Постройте треугатьния \( A B C \) в котором \( \angle A=\angle H, \angle B=\angle K, A B=2 H K \).

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

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

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 \( 1 \mathrm{cc}=1 \mathrm{ml} \) ) \( \begin{array}{ll}\text { (a) } 40,000 & \text { (b) } 30,000\end{array} \)