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3 years ago

If two angle of a right angle triangle are in the ratio 1:2,find them

Mathematics

2 answers:

Oksanka [162]3 years ago

5 0

Answer:

let the angles be x,2x

=>90+x+2x=180

=>3x=90

=>x=30

so, the angles are 30,60

disa [49]3 years ago

4 0

let the angles be x,2x

=>90+x+2x=180

=>3x=90

=>x=30

so, the angles are 30,60

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What part of the circumference is an arc whose measure is 30°?

Radda [10]

Circumference of a circle:
C = 2 r π;
Length of an arc:
L = r π α / 180°
L = r π · 30° / 180° = r π /6
r π /6 : 2 r π = 1/6 : 2 = 1/12
Answer: A ) 1/12

7 0

3 years ago

PLEASE HELP FOR 15 Points!!!! THE GRAPH IS IN ONE OF MY QUESTIONS

zavuch27 [327]

Answer:

m<1= 90°

m<2= 58°

3<= 32°

Step-by-step explanation:

The angles are congruent angles.

6 0

3 years ago

Which of the following illustrates a phase shift?

Natasha_Volkova [10]

Answer:

A. y = -2 - cos(x-π)

Explanation:

The general form of the trig equation is:

y = A sin (Bx + C) + D

where:

A is the amplitude

$\frac{2\pi}{B}$ is the period

$\frac{-C}{B}$ is the phase shift

D is the vertical shift

Now, let's check the choices:

A. y = -2 - cos(x-π)

$\frac{-C}{B} = \frac{\pi}{1} = \pi$

Therefore, the function has a phase shift of π

B. y = 3 cos(4x)

$\frac{-C}{B} = \frac{0}{4} = 0$

Therefore, the function has no phase shift

C. y = tan(2x)

$\frac{-C}{B} = \frac{0}{2} = 0$

Therefore, the function has no phase shift

D. y = 1 + sin(x)

$\frac{-C}{B} = \frac{0}{1} = 0$

Therefore, the function has no phase shift

Based on the above, the correct answer is A

Hope this helps :)

3 0

3 years ago

Read 2 more answers

PLZ HELP!! I NEED QUICKLY!!

Amiraneli [1.4K]

Answer:

(1, 1), (2, 2), (-3, -3), (4, 4), (-5, -5)

Step-by-step explanation:

You get a straight line. As you can see in the picture, the figure lies in the first and third quadrant.

4 0

3 years ago

Read 2 more answers

someone pls help!!! Complete the proofs using the most appropriate method. Some may require CPCTC. I will give brainly

Softa [21]

Answer:

I can't write out the whole proof here.

it bisects, so we know BCA is congruent to DCA

abc being congruent to adc is given

AC = AC because it is a singular side

AAS

then the lines are congruent by CPCTC

3 0

3 years ago

If two angle of a right angle triangle are in the ratio 1:2,find them​

If two angle of a right angle triangle are in the ratio 1:2,find them