In this math topic, students practice calculating areas of obtuse triangles situated on a Cartesian grid and finding missing coordinates that include negative values. The problems provide a specific area for each triangle and require the learners to determine the missing x or y coordinates from multiple-choice options. Each problem is visualized with an image, reinforcing the concept of geometric shapes on the Cartesian grid and enhancing the understanding of spatial reasoning and coordinate geometry.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Area (Obtuse Triangle) to Missing Coordinate - Including Negative
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Find the missing value for x if the triangle has an area of 16
Cartesian Grid - Area (Obtuse Triangle) to Missing Coordinate - Including Negative Worksheet
| Math worksheet on 'Cartesian Grid - Area (Obtuse Triangle) to Missing Coordinate - Including Negative (Level 1)'. Part of a broader unit on 'Cartesian Grid Geometry Logic - Practice' Learn online: app.mobius.academy/math/units/cartesian_grid_geometry_logic_practice/ |
| Find the missing value for x if the triangle has an area of 30 |
| 10 |
| 6 |
| -2 |
| 1 |
| 14 |
| 3 |
| Find the missing value for x if the triangle has an area of 42 |
| -3 |
| -7 |
| -1 |
| -8 |
| -13 |
| -9 |
| Find the missing value for y if the triangle has an area of 40 |
| 2 |
| -9 |
| 0 |
| -11 |
| -15 |
| -5 |
| Find the missing value for y if the triangle has an area of 36 |
| 1 |
| -14 |
| -7 |
| -6 |
| -13 |
| -15 |
| Find the missing value for y if the triangle has an area of 48 |
| -14 |
| 0 |
| -10 |
| -13 |
| -9 |
| -16 |
| Find the missing value for x if the triangle has an area of 78 |
| -9 |
| -13 |
| 2 |
| -5 |
| -12 |
| -15 |
| Find the missing value for x if the triangle has an area of 28 |
| -11 |
| 3 |
| -2 |
| -1 |
| 4 |
| -8 |