Una corda di una circonferenza misura 48 cm e dista 7 cm dal centro. Calcola la lunghezza della circonferenza. [50 \( \pi \mathrm{cm}] \)

A conical tent is to accommodate 11 persons. Each person must have 4 sq. metres of the space on the ground and 20 cubic metres of air to breath. Find the height of the cone. A. 11 m B. 16 m

27. Vid addition av tal gäller den associativa lagen, d.v.s. \( (a+b)+c=a+(b+c) \). Till exempel är \( (3+2)+5=5+5=10 \) och \( 3+(2+5)=3+7=10 \). Den associativa lagen gäller även för addition av vektorer. Visa med ett exempel att detta gäller även för vektorema \( \vec{u}, \vec{v} \) och \( \vec{w} \).

Задачи 126 Отрезки \( A B \) и \( C D \) пересекаюгся в середине отрезка \( A B \), точке \( O, \angle O A D=\angle O B C \). a) Докажите, что \( \triangle C B O=\triangle D A O \);

Triangle MOP has been rotated to create triangle M'O'P'.MP \( =M^{\prime} P^{\prime}=2 \) units, \( M O=M O^{\prime}=2 \) units, and \( O P=O^{\prime} P^{\prime}=2.82 \) units. Which postulate below would prove the two triangles are congruent OSSS OASA OAAS

10. Which of the following could not be the side lengths of a right triangle? A. \( 7.5,10 \) and 12.5 B. 85,13 and 84 C. 37,35 and 12 D. 24,22 and 40