Math Problem Statement

Solve the right triangle​ ABC, where C=90___°. a=75.4 ​yd, b=41.8 yd c=__yd​(Simplify your answer. Type an integer or a decimal. Round to the nearest tenth as​ needed.) A=′ ​(Simplify your answers. Type integers. Round to the nearest ten minutes as​ needed.) B=° ___′ ​(Simplify your answers. Type integers. Round to the nearest ten minutes as​ needed.)

Solution

To solve the right triangle ABC\triangle ABC where C=90C = 90^\circ, side a=75.4a = 75.4 yards, and side b=41.8b = 41.8 yards, we need to find:

  1. The length of side cc (the hypotenuse).
  2. The angle AA in degrees and minutes.
  3. The angle BB in degrees and minutes.

1. Find the hypotenuse cc using the Pythagorean theorem:

c=a2+b2c = \sqrt{a^2 + b^2} Substituting a=75.4a = 75.4 yards and b=41.8b = 41.8 yards: c=75.42+41.82c = \sqrt{75.4^2 + 41.8^2}

Let me calculate this.

c=75.42+41.82=5680.36+1747.24=7427.6c = \sqrt{75.4^2 + 41.8^2} = \sqrt{5680.36 + 1747.24} = \sqrt{7427.6} c86.2 yardsc \approx 86.2 \text{ yards}

2. Find the angle AA:

To find angle AA, we use the tangent function: tan(A)=ab=75.441.8\tan(A) = \frac{a}{b} = \frac{75.4}{41.8} A=tan1(75.441.8)A = \tan^{-1} \left( \frac{75.4}{41.8} \right)

Let me calculate this.

Atan1(1.8048)61.5A \approx \tan^{-1}(1.8048) \approx 61.5^\circ

Convert the decimal part into minutes: 0.5×60=30 minutes0.5^\circ \times 60 = 30 \text{ minutes} Thus, A6130A \approx 61^\circ 30'.

3. Find the angle BB:

Since ABC\triangle ABC is a right triangle, the sum of angles is 180180^\circ. Therefore, angle BB can be calculated as: B=90A=906130B = 90^\circ - A = 90^\circ - 61^\circ 30' B2830B \approx 28^\circ 30'

Final Answer:

  • c86.2c \approx 86.2 yards
  • A6130A \approx 61^\circ 30'
  • B2830B \approx 28^\circ 30'

Would you like more details or have any questions?

Related Questions:

  1. What is the sine of angle AA?
  2. What is the cosine of angle BB?
  3. How would you find the area of triangle ABCABC?
  4. Can the triangle's area be calculated using trigonometry?
  5. What is the ratio of the triangle's sides?

Tip: Always remember to round to the required precision after each calculation to avoid errors.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Right Triangle Properties
Pythagorean Theorem
Angle Measurement

Formulas

Pythagorean Theorem: c = √(a^2 + b^2)
Tangent Function: tan(A) = a / b
Sum of Angles in a Triangle: A + B + C = 180°

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 9-12