Math Problem Statement
Luas segitiga PQR adalah…
Solution
The area of triangle can be calculated using the formula for the area of a triangle:
From the diagram, we see the following coordinates:
- lies on the x-axis (though the exact location of is not directly labeled, it's clear that aligns with point ).
Step-by-step calculation:
-
Base of triangle : The base is the distance between points and . The base is the horizontal distance, i.e., .
-
Height of triangle : The height is the vertical distance from point down to the x-axis (since lies on the x-axis). The height is , which is the y-coordinate of point .
-
Area of triangle :
Thus, the area of triangle is square units.
Let me know if you'd like more details or have any questions! Here are 5 related questions to expand on this:
- How do we find the coordinates of point if needed?
- What is the distance between points and ?
- How would the area change if the height from point were doubled?
- Can you derive the equation of the line passing through points and ?
- How would you calculate the perimeter of triangle ?
Tip: For geometric problems, breaking down coordinates and calculating distances systematically is key to solving for areas and perimeters effectively.
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Math Problem Analysis
Mathematical Concepts
Geometry
Coordinate Geometry
Area of Triangles
Formulas
Area of Triangle = 1/2 * base * height
Theorems
Basic Geometry Theorems
Suitable Grade Level
Grades 7-9
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