What are their sizes? One of the angles formed when two lines intersect is \( 127^{\circ} \). What are the sizes of the other three angles?

Determina le equazioni delle rette che passano per il punto \( P(-3 ; 1) \) e che formano un angolo di \( 45^{\circ} \) con la retta di equazione \( 4 x-2 y+3=0 \). \[ [y+3 x+8=0 ; 3 y-x-6=0] \]

How do you calculate the circumference of a semicircle with a radius of 5 units?

2. In two isosceles triangles, the angles at the vertex where two equal sides meet are equal. Are the triangles congruent? Give reason(s) for youple

In two isosceles triangles, theargles at the verter where two equal sides meet are equal. Are the triangles congruent? Give reason(s) for yo if/

\( A B \) xercice 1: est un point de \( (L) \). 1- Quel est le symétrique de \( A \) par rapport à (L) ? 2- Quel est le symétrique de \( B \) par rapport à (L)? 3- Quel est le symétrique de \( C \) par rapport à (L) ?