Math Problem Statement

Calculate the size of angle x in the triangle, given that one angle is 33 degrees, one side is 8.7 cm, and the base is 11.9 cm. Give the answer to the nearest integer.

Solution

To find the size of angle xx in this triangle, we will use some basic geometry.

Step-by-step approach:

  1. Angle sum property of a triangle: In any triangle, the sum of the interior angles equals 180180^\circ. Therefore, the sum of the given angle 3333^\circ, the unknown angle xx, and the right angle (which is 9090^\circ) must be equal to 180180^\circ.

    33+x+90=18033^\circ + x + 90^\circ = 180^\circ

  2. Solve for xx: x=1803390x = 180^\circ - 33^\circ - 90^\circ x=57x = 57^\circ

So, the size of angle xx is 5757^\circ to the nearest integer.

Would you like any further details or clarification?

Here are 5 related questions you may find interesting:

  1. How do you apply the Law of Sines in a triangle?
  2. What is the difference between an acute and obtuse angle?
  3. How do you calculate the area of a triangle?
  4. Can this triangle be classified as a right triangle?
  5. How do you solve for missing sides in a triangle using trigonometric ratios?

Tip: Always remember that the sum of angles in any triangle will always be 180180^\circ. This is a fundamental property that helps with many triangle-related problems.

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Math Problem Analysis

Mathematical Concepts

Geometry
Triangle Properties
Angle Sum Property

Formulas

Sum of angles in a triangle: A + B + C = 180 degrees

Theorems

Angle Sum Property of Triangles

Suitable Grade Level

Grades 8-10