1) Re produce the figure 2) Prove that the triangle \( A M B \) is a secul equilateral triangle 3) Calculate \( A B \) and \( A M \) and \( M B \)

A sector has radius 12 m and area \( 64 \pi \mathrm{~m}^{2} \). What is the measure, in degrees, of the central angle of the sector?

A sector has central angle \( \frac{11}{13} \pi \) and radius 22 . Find the area of the sector. Give your answer in terms of \( \pi \) or as a decimal rounded to two decimal places.

A sector has radius 4 and central angle \( 184^{\circ} \). Find the area of the sector. Give your answer in terms of \( \pi \) or as a decimal rounded to two decimal places.

Stabilisci se le seguenti quaterne di numeri rappresentano le misure in centimetri delle lunghezze dei lati di un quadrilatero. Se si, calcola it perimetro del quadrilatero. a \( 13,24,7,41 \) b \( 3,10,8,22 \) e \( 11,9,9,15 \)

Dalle diagonali all'altezza Un rombo ha le diagonali che misurano 24 cm e 7 cm e il lato di \( 12,5 \mathrm{~cm} \). Calcola l'altezza del rombo.