1. In a circle with centre \( O \) and radius \( 5 \mathrm{~cm}, A B \) is a chord of length 8 cm . If \( O M \perp A B \), what 2. In a length of \( O M \) ? in the length of centre \( O \) and radius \( 13 \mathrm{~cm}, A B \) is a chord. If \( O M \perp A B \) and \( O M=5 \mathrm{~cm} \), wh 3. In a circle of radius 7 cm , find the distance of a chord of length 9 cm from the centre. 4. In a circle of radius 13 cm , a chord is drawn at a distance 12 cm from the centre. Find th length of the chord. 5. A chord of a circle is 6 cm in length and its distance from the centre is 4 cm . Find the radius of the same circle.

Point \( C \) with coordinates \( (50,30) \) is mapped onto \( C^{\prime} \) through a translation by vector \( \langle-3,6\rangle \). What are the coordinates of \( C^{\prime} \) ? - \( (47,36) \) - \( (53,24) \) - \( (47,24) \) - \( (53,36) \)

2) Representá los siguientes 3 irracionales en la recta real, por separado. Recordá elegir la escala adecuada en tu hoją cuadriculada y utilizar regla y compás. Mostrá los cálculos adecuados y cómo queda escrito el Teorema de Pitágoras cómo queda el triángulo y las medidas de sus lados. \( \begin{array}{lll}\text { a) } \sqrt{50} & \text { b) }-\sqrt{13}+1 & \text { c) } \sqrt{13}+\sqrt{10}\end{array} \)

Analitik düzlemde \( d_{1}: 2 x+y-12=0 \) ve \( d_{2}: x-y+6=0 \) doğruları veriliyor. 9. \( d_{1} \) ve \( d_{2} \) doğruları ile \( x \) ekseni arasında kalan alanın kaç birimkare olduğunu bulu- nuz. 10. \( d_{1} \) ve \( d_{2} \) doğruları ile eksenler arasında kalan alanın kaç birimkare olduğunu bulunuz.

Identify the measure of each interior angle of a regular 15 - gon.

The points \( \mathrm{A}(-2,7), \mathrm{B}(-3,4) \) and \( \mathrm{C}(1,16) \) are collinear.