3 years ago

Find the measure of the indicated angle: A) 68° C) 45° B) 47° D) 940

Mathematics

1 answer:

maw [93]3 years ago

5 0

The correct answer is “A”

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If cosθ=2/3 find cscθ using identities. This is in quad. 1.

laiz [17]

Step-by-step explanation:

cos θ = 2/3

$\quad \twoheadrightarrow\sf {cos \; \theta = \dfrac{Base}{Hypotenuse} } \\$

Hence, base = 2 units and hypotenuse = 3 units.

$\quad \twoheadrightarrow\sf { H^2 = B^2 + P^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = H^2 - B^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = (3)^2 - (2)^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = 9- 4} \\$

$\quad \twoheadrightarrow\bf { P = \sqrt{5}} \\$

Now, we know that :

$\quad \twoheadrightarrow\sf {cosec \; \theta = \dfrac{Hypotenuse}{Perpendicular} } \\$

$\quad \twoheadrightarrow\bf{cosec \; \theta = \dfrac{3}{\sqrt{5}} } \\$

Therefore, the required answer is 3/√5.

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2 years ago

An equilateral triangle has side length 10 centimeters. Find its area in square centimeters. HINT: The altitude of an equilatera

dmitriy555 [2]

30cmsquared hope this helps!!!!!

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3 years ago

HELP

xeze [42]

Answer:

Step-by-step explanation:

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3 years ago

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The base is a 45 45 90 triangle with a leg of 5 in. The height is 1.8 what’s the volume of the prism

hjlf

brainly.com/question/3774542 Try this it might help

6 0

3 years ago

What is <br> Sinx =125/500

Anastasy [175]

Answer:

14.4775121859299

Step-by-step explanation:

sinx = 125/500

sinx = 1/4

or, x = arcsin(1/4)

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