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3 years ago

An inscribed angle is an angle formed by two radii that share an endpoint. (true or false)

Mathematics

2 answers:

kaheart [24]3 years ago

6 0

Answer:

False

Step-by-step explanation:

sineoko [7]3 years ago

5 0

Answer:

False

Step-by-step explanation:

False. An <em>inscribed angle</em> is formed by two chords (inside a circle).

Note: A <em>central angle</em> is an angle formed by two radii that share an endpoint.

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Use a product of two binomials to find a polynomial that represents the area of Roberto's plot.

Helga [31]

Answer:

First, we know that the area of a rectangle of width W and length L is:

A = W*L

In the case of Roberto's plan, we can see that the length of the whole rectangle is:

L = 1.5ft + x + 1.5ft = 3 ft + x

And the width is:

W = 3ft + x + 3ft = 6ft + x

Then the area of the whole thing is:

A = (3ft + x)*(6ft + x)

This is what we wanted, a product of two polynomials that represents the area of Roberto's plot.

Now if we subtract the white square (is a square of sidelength x, then its area is A = x*x) we will get the area of the border;

The total area of Roberto's borders is:

Area of the border = (3ft + x)*(6ft + x) - x*x

= 3ft*6ft + 3ft*x + x*6ft + x^2 - x^2

= x*9ft + 18ft^2

3 0

3 years ago

This figure consist of a rectangle a semi circle and a quarter circle what is the perimeter of this figure use 3.14 for pi

alexandr402 [8]

Answer:

37.55 m

Step-by-step explanation:

To find the perimeter, we have to add the lengths of each part of the figure.

We start from the circle on top. We see that its diameter is 10 m, therefore its radius is

r = 5 m

(because the radius is half the diameter). The perimeter of a circle is given by

$p=2 \pi r$

However, here we have half a circle, so its perimeter is

$p_1 = \pi r=(3.14)(5)=15.7 m$

Then continuing in a clockwise direction, we have to add the length of the side of 2 m:

$p_2 = 2 m$

Then we have two sides of a square of side 5 m, so:

$p_3 = 5 m + 5 m= 10 m$

Then we have a quarter of a circle of radius r = 5 m, so its perimeter is:

$p_4 = \frac{\pi r}{2}=\frac{\pi (5)}{2}=7.85 m$

Finally, we have one more side of length 2 m:

$p_5 = 2m$

Therefore, the total perimeter is:

$p=p_1+p_2+p_3+p_4+p_5=15.7+2+10+7.85+2=37.55 m$

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4 years ago

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Natalija [7]

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qwelly [4]

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