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Olin [163]
2 years ago
10

Please help me i would really appreciate it.

Mathematics
2 answers:
kaheart [24]2 years ago
6 0

Answer:

Question 11- 6.28 yards square

AnnyKZ [126]2 years ago
5 0

6.28 = Question 11

and i can not solve for 12 sorry

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The area of triangle ABC is 3√2 square inches. Find the measure of the acute angle, A, if b = 9 meters and c = 2 meters.
taurus [48]

Answer:

A\approx 28^{\circ}

Step-by-step explanation:

Please find the attachment.  

We have been given that area of triangle ABC is 3√2 square inches.

\text{Area}=\frac{1}{2}\text{Base}\times \text{height}

We know that area of triangle an be found using trigonometry as:

\text{Area}=\frac{1}{2}\times c\times h

\text{sin}(A)=\frac{h}{9}\\h=9\cdot \text{sin}(A)

3\sqrt{2}=\frac{1}{2}\times 2\times 9\cdot \text{sin}(A)

3\sqrt{2}=9\cdot \text{sin}(A)

9\cdot \text{sin}(A)=3\sqrt{2}

\text{sin}(A)=\frac{3\sqrt{2}}{9}

\text{sin}(A)=\frac{\sqrt{2}}{3}

Now, we will use inverse sine to find the value of angle A as:

A=\text{sin}^{-1}(\frac{\sqrt{2}}{3})

A=28.1255057^{\circ}

A\approx 28^{\circ}

Therefore, the measure of angle A is approximately 28 degrees.

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2 years ago
Evaluate the equation. d - 4.12 = 12.8
elena55 [62]

Answer:

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If measure of angle 1=30, then measure of arc ab=
Mnenie [13.5K]
An arc of a circle has the same measure as the central angle that intercepts it.

Central angle 1 intercepts arc AB.

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Step-by-step explanation:

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Louis is planning to mow a rectangular yard that is 20 feet longer than it wide. He wants to find its width if its area is 1125
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2×+x=1125 I really hope this helps.
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3 years ago
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