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Aleksandr-060686 [28]

3 years ago

7

Which congruent theorem can be used to prove..

1 answer:

hjlf3 years ago

5 0

Answer:

Two angles and the non-included side of one triangle are congruent to the corresponding parts of another triangle. Which congruence theorem can be used to prove that the triangles are congruent? Two sides and the included angle of one triangle are congruent to the corresponding parts of another triangle.

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The point where the two sides of an angle meet, or where the edges of a three-dimensional intersect.

Ymorist [56]

I believe you are describing a vertex

3 0

4 years ago

The circumference of a circle that has a radius of 70 feet is most nearly

ololo11 [35]

Answer:

B 440 feet

Step-by-step explanation:

C = 2(3.14)r

= 2(3.14)70 feet

= 6.28(70 feet)

= 439.6

439.6 is approximate to 440 feet

6 0

3 years ago

Please help me <br> 10 points

erastova [34]

Let us prove that angle 1 is complementary to angle 3 step by step.

1. We have been given that angle 1 is complementary to angle 2.

2. Since we know that complementary angles add up to 90 degrees, therefore, by the definition of complementary $m\angle 1+ m\angle 2=90^{o}$ .

3. We have been also given that line segment BD bisects $\angle ADC$ .

4. By the definition of bisect $\angle 2 \cong \angle 3$ .

5. Angles are congruent if their measures, in degrees, are equal, therefore, by angle congruence postulate $m\angle 2=m\angle 3$ .

6. $m\angle 1+ m\angle 2=90^{o}$

Upon substituting $m\angle 2=m\angle 3$ in above equation we will get,

$m\angle 1+ m\angle 3=90^{o}$

Therefore, by substitution property of equality $m\angle 1+ m\angle 3=90^{o}$ .

Hence, proven that angle 1 is complementary to angle 3.

4 0

4 years ago

Abigail is 54 inches tall. Which of the following is Abigail's height?

4vir4ik [10]

Answer:

If you wanted it to be converted to ft, then her height would be: 4 ft , 5 inches

~hope this has helped you out, have a gr8 day!~

Step-by-step explanation:

3 0

3 years ago

(20 points)Solve the equation cos x = sin (x + 22)

Law Incorporation [45]

Answer:

$\bold{x = 34^\circ}$

Step-by-step explanation:

Given:

$cos x = sin (x + 22^\circ)$

To solve:

The given equation.

Solution:

First of all, let us consider an important property of sine and cosine.

$sin(90^\circ-\theta )=cos\theta$

OR

$cos(90^\circ-\theta )=sin\theta$

We can apply above property to solve for $x$ as per given equation.

$cos x = sin (x + 22^\circ)$

Changing $cosx$ to sine form:

$cosx=sin(90^\circ-x)$

$cosx=sin(90^\circ-x) = sin(x+22^\circ)$

$\therefore 90^\circ-x=x+22^\circ\\\Rightarrow 90^\circ-22^\circ=x+x\\\Rightarrow 2x=68^\circ\\\Rightarrow \bold{x = 34^\circ}$

So, solution to the equation $cos x = sin (x + 22^\circ)$ is:

$\bold{x = 34^\circ}$

7 0

3 years ago