A unidade astronômica (UA) é dada pela distância média da Terra até o sol. Essa distância é de, aproximadamente, 150 000 000 km. Netuno é um planeta do sistema solar que está a, aproximadamente, 30 UA distante do sol. Com base nesses dados, a distância, em quilômetros, do planeta Netuno ao sol, em notação científica, é a) 4,5×10 –9 km.
b) 4,5×106 km.
c) 4,5×109 km.
d) 4,5×1011 km.
ME AJUDEM POR FAVOR O_o

Step-by-step explanation:

UNVA KSAOS

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.