Geometric Analysis: Identifying Acute Triangles from Visual Representation
Question
Is the triangle in the drawing an acute-angled triangle?
Video Solution
Solution Steps
00:00Determine whether the triangle is an acute triangle
00:04Proceed to mark the remaining angles with letters A,B
00:10The sum of the angles in a triangle equals 180
00:22Isolate the sum of the angles A and B
Step-by-Step Solution
To solve this problem, we need to determine whether the triangle is an acute-angled triangle.
Step 1: Recognize that a triangle is acute if all its angles are less than 90∘.
Step 2: Consider the properties of the triangle in the diagram. From the drawing, the triangle is formed by vertices that have axes overlapping in a grid-like manner, suggesting it is a right triangle by observation.
Step 3: Validate the triangle’s nature through geometric calculation. The provided path structure resembles a right-angle configuration where two lines meet at a right angle, forming one angle of exactly 90∘. The third line likely forms a hypotenuse, characteristic of right triangles.
Given the diagram’s setup and line relationships, the triangle’s apparent right angle indicates it is not an acute-angled triangle since one angle equals 90∘, rather than being less than 90∘.
Therefore, the solution to the problem is No, the triangle is not an acute-angled triangle.