Melanie's bedroom walls are painted 45% painted. The area if her walls totals 420 square feet. What number of square feet of Melanie's walls still need to be painted?

Solution:

Given that,

Melanie's bedroom walls are painted 45% painted

The area of her walls totals 420 square feet

To find: number of square feet of Melanie's walls still need to be painted

From given,

45 % of wall is painted

Which means, 100 % - 45 % = 55 % is still remaining to be painted

55 % of total area is still remaining to be painted

Therefore,

Remaining to be painted = 55 % of 420

Thus 231 square feet of Melanie's walls still need to be painted

it could 14.28 but if its not that one then it has to be the 17 one. hope this ! : )

step-by-step explanation:

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'.