Math Problem Statement

What is the value of x in a right triangle with a height of 7 cm, a hypotenuse of 9 cm, and an unknown base x?

Solution

This image shows a right triangle, with a perpendicular height of 7 cm, a slant height (hypotenuse) of 9 cm, and the base labeled as xx cm. Additionally, there is an angle θ\theta on the right side of the triangle.

To solve for xx, we can use the Pythagorean theorem, which states:

c2=a2+b2c^2 = a^2 + b^2

Where:

  • cc is the hypotenuse (9 cm),
  • aa is the height (7 cm),
  • bb is the base (xx).

Let's calculate xx using this formula.

92=72+x29^2 = 7^2 + x^2

81=49+x281 = 49 + x^2

x2=8149x^2 = 81 - 49

x2=32x^2 = 32

x=325.66cmx = \sqrt{32} \approx 5.66 \, \text{cm}

So, x5.66cmx \approx 5.66 \, \text{cm}.

Would you like further details or have any questions?

Here are 5 related questions:

  1. How can we calculate the area of this triangle?
  2. What is the value of θ\theta using trigonometry?
  3. How do we find the perimeter of this triangle?
  4. What other methods can be used to solve for xx?
  5. What is the significance of the right angle in the triangle's properties?

Tip: In any right triangle, the Pythagorean theorem is a powerful tool for solving for unknown sides when two sides are given.

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Math Problem Analysis

Mathematical Concepts

Geometry
Right Triangle
Pythagorean Theorem

Formulas

c^2 = a^2 + b^2

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 7-9