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3 years ago

What statement is NOT always true

Mathematics

1 answer:

Step2247 [10]3 years ago

8 0

The statement "the diagonals are perpendicular ti each other" is sometimes true and sometimes false

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Extra P./Geometry Help quick! Thanks In Advance :)

IrinaVladis [17]

The measure of angle C is 89 degrees.

Step-by-step explanation:

The given polygon ABCD is a quadrilateral.

The property of a quadrilateral :

The sum of the consecutive angles add to 180°.

In this quadrilateral, the angles B and C are consecutive angles. So, the sum of angle B and angle C is equal to 180 degree.

Given that,

The measure of angle B = 2x+3
The measure of angle C = 2x+1

To find the value of x :

m∠B + m∠C = 180

(2x+3) + (2x+1) = 180

4x + 4 = 180

4x = 180 - 4

4x = 176

x = 176/4

x = 44

To find m∠C :

m∠C = 2x + 1

⇒ 2(44)+1

⇒ 88+1

⇒ 89°

The measure of angle C is 89 degrees.

4 0

3 years ago

Ohdhhdhdhdgdueyehehehhegehehehgegr

Furkat [3]

Answer:

JSHKAKSBKSBAK?

Step-by-step explanation:

8 0

1 year ago

A frozen dinner is divided into 3 sections on a circular plate with a 12-inch diameter. The central angle formed by the peach co

Vsevolod [243]

Answer:

D. 5 inches

Step-by-step explanation:

Given:

A frozen dinner is divided into 3 sections on a circular plate with a 12-inch diameter.

That means complete angle having 360° is divided into 3 section.

The central angle formed by the peach cobbler is 105 degrees.

The central angle formed by the pasta is 203 degrees.

Question asked:

What is the approximate length of the arc of the section containing the peas?

Solution:

The central angle formed by the peas = 360° - 105° - 203°

= 52°

$Ridius,r=\frac{Dameter}{2} =\frac{12}{2} =6\ inches$

As we know:

$Length\ of\ arc=2\pi r\times\frac{\Theta }{360}$

$=2\times\frac{22}{7} \times6\times\frac{52}{360} \\ \\ =\frac{13728}{2520} \\ \\ =5.44\ inches$

Therefore, the approximate length of the arc of the section containing the peas are 5 inches.

6 0

3 years ago

Paul works at a local grocery store. he worked 15 hours this week. last week he worked 2.5 times as many hours as he worked this

Nonamiya [84]

So last week Paul worked 2.5x this week's hours, so he worked a total of 2.5x15= 37.5 hours last week.

6 0

4 years ago

Find the area of the triangle. Enter your answer in the box.

BlackZzzverrR [31]

The answer is 12 m2
Explanation:

5 0

3 years ago

Read 2 more answers