
COSINUS Y PRIMUS 1
Authored by Cristina pIQUER Oliet
Mathematics
12th Grade

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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soit ABC un triangle rectangle en B.
Le rapport AB/AC ne dépend que de la mesure de ....
l’angle Â
l’angle ^B
L´HYPOTENUSE
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le rapport AB/AC ne dépend que de la mesure de l’angle Â
Ce rapport est appelé ...... de l’angle  et est noté ....
COSINUS = cos Â
SINUS = sin Â.
PRIMUS = prim Â.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Propriété : Le cosinus d’un angle est toujours un nombre compris entre .....
0 et 1
-1 et 0
-1 et 1
1 et 2
Answer explanation
L´hypoténuse est le plus grand côté dans un triangle rectangle, donc le rapport
côte/hypotenuse
est toujours plus petit que 1.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans le triangle ABC rectangle en B
on a AB = 3 cm, AC = 5 cm et BC = 4 cm.
Calculer le cosinus de l’angle BAC
0.6
1.2
0.55
Answer explanation
L´hypoténuse est le plus grand côté dans un triangle rectangle, donc le rapport
côte/hypotenuse
est toujours plus petit que 1.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans le triangle ABC rectangle en B
on a AB = 3 cm, AC = 5 cm et BC = 4 cm.
Calculer le cosinus de l’angle BCA
0.8
1.1
0.6
Answer explanation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nommer l´angle marque en vert ainsi que son cosinus
TRUCO = SIEMPRE la hipotenusa (que es el lado más largo) en la parte de abajo del cociente. La hipotenusa es el lado que está frente al ángulo recto (en este caso, es el lado CI).
angle LOP
cos LOP= PO/OL
angle LOP
cos LOP= OL/PO
angle PLO
cos LOP= LP/LO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nommer l´angle marque en vert ainsi que son cosinus
TRUCO --> la hipotenusa (que es el lado más largo) SIEMPRE en la parte de abajo del cociente. La hipotenusa es el lado que está frente al ángulo recto (en este caso, es el lado CI).
angle TIC
cos TIC= TI/CI
angle TIC
cos TIC= CI/TI
angle TCI
cos TIC= CT7CI
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