All categories

3 years ago

Which statement are true about angles

Mathematics

1 answer:

guapka [62]3 years ago

6 0

Answer:

In geometry and trigonometry, a right angle is an angle of exactly 90° (degrees), corresponding to a quarter turn. If a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles.

The acute angle is the small angle which is less than 90°. If you choose the larger angle you. will have a Reflex Angle instead: The smaller angle is an Acute Angle, but the larger angle is a Reflex Angle.

In geometry, there are five types of angles. An obtuse angle is greater than 90 degrees but less than 180 degrees. An acute angle is less than 90 degrees, A right angle is exactly 90 degrees. A straight angle is exactly 180 degrees, and a reflex angle is greater than 180 degrees.

You might be interested in

Consider the rational equation 1/R=(1/x)+(1/y).Find the value of R when x=2/5 and y=3/4.

puteri [66]

Answer:

R = $\frac{6}{23}$

Step-by-step explanation:

Given the rational equation as:

$\frac{1}{R}=\frac{1}{x}+\frac{1}{y}$

To find:

The value of R when x = $\frac{\textup{2}}{\textup{5}}$

and, y = $\frac{\textup{3}}{\textup{4}}$

now,

substituting the given values of x and y in the given rational equation,

$\frac{1}{R}=\frac{1}{\frac{2}{5}}+\frac{1}{\frac{3}{4}}$

⇒ $\frac{1}{R}=\frac{5}{2}+\frac{4}{3}$

⇒ $\frac{1}{R}=\frac{5\times3+4\times2}{2\times3}$

⇒ $\frac{1}{R}=\frac{15+8}{6}$

⇒ $\frac{1}{R}=\frac{23}{6}$

now on rearranging, we get

⇒ R = $\frac{6}{23}$

4 0

3 years ago

What is the value of y in the formula shown when x = 4/5 ?

melomori [17]

x = 4/5 = 0.8

y = (4/x * x) + √x + 0.2 - 5x.

First, let's plug 0.8 in for x

y = (4/0.8 * 0.8) + √0.8 + 0.2 - 5(0.8)

(4/0.8 * 0.8) the 0.8s cancel out leaving just 4

y = 4 + √0.8 + 0.2 - 5(0.8)

5 * 0.8 = 4

y = 4 + √0.8 + 0.2 - 4

Add all the terms together

y = 1.09.

6 0

3 years ago

Please help me with the answer ASAP.

tiny-mole [99]

Answer:

y=93/5x+3

Step-by-step explanation:

6 0

3 years ago

For a project in her Geometry class, Chee uses a mirror on the ground to measure the

maria [59]

The geometry technique that Chee uses to find the height of the goalpost is the equal ratio of the corresponding sides of similar triangles.

Correct response:

The eight of the goalpost is approximately <u>16.91 meters</u>.

<h3>Methods used to calculate the height</h3>

The length Chee is using the mirror to measure = The height of her school's football goalpost

The distance of the mirror from the goalpost = 14.35 meters

The distance on the other side of the mirror Chee steps to = 1.4 meters

The distance from her eyes to the ground = 1.65 meters

Required:

How tall is the goalpost.

Solution:

By using similar triangles relationships, we have;

$\dfrac{1.65}{1.4} = \mathbf{\dfrac{Height \ of \ the \ goalpost, h}{14.35} }$

Which gives;

$h = \dfrac{1.65}{1.4} \times 14.35 = 16.9125 \approx \mathbf{ 16.91}$

The height of the goalpost, h ≈ <u>16.91 meters</u>

Learn more about similar triangles here:

brainly.com/question/10676220

7 0

3 years ago

How do I do this it is a histogram problem the work is on the pictures

Dafna11 [192]

You have to measure it

4 0

3 years ago