Определи вид треугольника \( A B C \), если точка пересечения серединных перпендикуляров сторон \( A B \) и \( B C \) треугольника \( A B C \) находитоя на стороне \( A C \). 1. Докажи, что \( A D=C D \). точка \( D \) как точка пересечения серединных перпендикуляров сторон \( A B \) и \( C B \)

299. Le basi e il lato obliquo di un trapezio isoscele misurano \( 39 \mathrm{~cm}, 21 \mathrm{~cm} \) e 15 cm . Calcola la diagonale di un rettangolo equivalente al tra- pezio sapendo che ha una dimensione di 9 cm . [ 41 cm\( ] \)

1.2 Co-interior angles are A. Obtuse B. Supplementary C. Complementary D. \( 180^{\circ} \)

6.1 A man places a 5 m ladder to reach a point of x m high on the wall. The distance from of the wall to the foot of the latter is 3 m . Calculate the height of the wall.

If the height of a cylinder is doubled while keeping the radius constant, how does that affect its volume?

1. Move the slider to choose a scale factor greater than 1. Where is point P'?