Atenção: A cada hora, o ponteiro das horas se desloca 360 12-30 graus
7) Os 2 angulos formados pelos ponteiros de
um relógio às 8 horas medem
121
11 12
10
2
9
3
B
7 6 5
a) 60° e 120°
b) 120° e 160°
c) 120° e 240°
d) 140° e 220°​

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

hm let me think hm think think hm think yes

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation:

i’ll just s take the points thxs