The maximum speed of china CRH380A a train is 4.873 x 10^2 kilometers per hour what is the greatest number kilometers to triangle travel in 16 hours express your answer in scientific notation

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

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'.