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erma4kov [3.2K]
3 years ago
14

A quadrilateral is a parallelogram only if both pairs of opposite sides are equal.

Mathematics
2 answers:
monitta3 years ago
6 0

Answer:

True

Step-by-step explanation:

A parallelogram is a quadrilateral with 4 sides and both pairs of opposite sides are equal.

damaskus [11]3 years ago
6 0

Answer:

Hey there! The answer to your question will be below.

Step-by-step explanation:

The correct answer would be A. True

Both sides of the opposite sides are equal and has to have 4 sides so a quadrilateral is a parallogram.

A quadrilateral is a parallelogram only if both pairs of opposite sides are equal

= TRUE!

Hope this helps!

By: xBrainly

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In triangle ABC, AC=13, BC=84, and AB=85. Find the measure of angle C
sergiy2304 [10]

Given:

In triangle ABC, AC=13, BC=84, AB=85.

To find:

The measure of angle C.

Solution:

Law of Cosines:

\cos C=\dfrac{a^2+b^2-c^2}{2ab}

\cos C=\dfrac{BC^2+AC^2-AB^2}{2(BC)(AC)}

Substituting the given values, we get

\cos C=\dfrac{(84)^2+(13)^2-(85)^2}{2(84)(13)}

\cos C=\dfrac{7056+169-7225}{2184}

\cos C=\dfrac{0}{2184}

\cos C=0

Taking cos inverse on both sides, we get

C=\cos^{-1}(0)

C=90^\circ

Therefore, the measure of angle C is 90 degrees.

4 0
2 years ago
A peregrine falcon can fly 332 kilometers per hour. How many meters per hour can the falcon fly?
Brrunno [24]


there are 1000 meters in 1 kilometer. so 332 kilometer X 1000

332(1000)= 3320

so the falcon can fly 3320 meters per hour

4 0
3 years ago
O dobro de um número, aumentado de 15, é igual a 49.<br> Qual é esse número?
zalisa [80]

Step-by-step explanation:

In Question it's given Double a number, increased by 15, is 49.

Let the number be x

According to question -

2x + 15 = 49

When solving this -

2x = 49 - 15

x = 34/2

x = 17.

<u>Here the number is 17.</u>

<u>Translation  / Tradução</u>

Em questão, o número duplo, aumentado em 15, é 49.

Seja o número x

De acordo com a pergunta -

2x + 15 = 49

Ao resolver isso -

2x = 49 - 15

x = 34/2

x = 17.

<u>Aqui o número é 17.</u>

6 0
3 years ago
(BRAINLIEST FOR QUICKEST)
e-lub [12.9K]

Answer:

\frac{x+7}{5}

Step-by-step explanation:

Add 7 to x gives x + 7 then divide this by 5, that is

\frac{x+7}{5}

8 0
3 years ago
PLZZZZ HELLPP  50 POINTS TO WHO CAN ANSWER CORRECTLY
finlep [7]
For this case we are going to assume that Nina wrote:
 3/4 (1440) + 295.25 + (-33.50).
 The expression is correct since we have:
 ticket sales were three-fourths as much as yesterday. That means
 3/4 (1440)
 food sales were down by $ 33.50, that means:
 295.25 + (-33.50)
 Therefore, today's sales were:
 3/4 (1440) + 295.25 + (-33.50).
 answer
 Nina's expression is correct
5 0
3 years ago
Read 2 more answers
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