Which set of numbers does not contain 70? A) whole numbers B) irrational numbers C) integers D) natural numbers

B) Irrational numbers

Step-by-step explanation:

The given number is .

We know the number which doesn't have any fractional part or decimal part is an integer. Here, there is no fractional part with the number 70, so this is an integer.

This is one of counting numbers from the set of , so this is a natural number.

Also, this belongs to the set of whole numbers .

But, can be written in the form of   as where , are integers and , so this is a rational number.

We know that any number that belongs to the rational number is not an irrational number.

Hence, does not belong to the set of irrational numbers.

So, option is correct.

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'.