\( 1 \leqslant \quad \begin{array}{l}\text { Two gears are adjusted so that the smaller gear drives the } \\ \text { larger one, as shown in the figure. If the smaller gear } \\ \text { rotates through an angle of } 270^{\circ} \text {, through how many } \\ \text { degrees will the larger gear rotate? }\end{array} \)

1. Нарисуйте произвольный треугольник \( B K X \). Обозначьте буквами и запишите: а) сторону, лежащую напротив угла \( K \); б) угол между сторонами \( B X \) и \( K X \); в) стороны, прилежащие к углу \( X \); г) углы, прилежащие к стороне \( B K \).

a. Find the area of the bigger room if the area of the smaller room is \( 8 \mathrm{~m}^{2} \). b. Find the ratio of their lengths c. If the length of the larger room is 10 m , find the length of the smaller one. \#\#\#ENDi\#\#\#

1. Determine the volume of a cube with sides of 30 mm . Express your answer in \( \mathrm{cm}^{2} \). 2. Calculate the volume of the following reetangular blocks: (a) length 40 cm ; heighth 30 cm ; width 15 cm . (b) Iength \( 1,5 \mathrm{~m} \); height \( 0,3 \mathrm{~m} \); width 50 cm . Express your answers in standard form, first in \( \mathrm{cm}^{3} \), then in \( \mathrm{m}^{3} \). 3. Astorage bin is 2 m long with vertical sides and a cross-section in the form of a trapezium as shown. What is the capacity of the bin?

Echelle \( 1: 25^{\prime} 000 \). distance sur la carte : 10 cm . distance réelle en km ?

Draw the graph of the following equation. \[ x^{2}+y^{2}+8 x+10 y-26=0 \]