This math topic focuses on finding the area of obtuse triangles defined by coordinates plotted on a Cartesian grid that include negative values. Each problem presents a diagram of a triangle on the grid, and the learner is required to calculate its area. The problems are designed as part of broader practice on triangle area calculation, challenging the learner's understanding of geometry and their ability to apply area formulas in a coordinate plane context.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Diagram Coordinates to Area (Obtuse Triangle) - Including Negative
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Find the area of the triangle formed by these coordinates
Cartesian Grid - Diagram Coordinates to Area (Obtuse Triangle) - Including Negative Worksheet
| Math worksheet on 'Cartesian Grid - Diagram Coordinates to Area (Obtuse Triangle) - 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/ |
1
| Find the area of the triangle formed by these coordinates |
a
| 60 |
b
| 79 |
c
| 117 |
d
| 41 |
e
| 126.5 |
f
| 98 |
2
| Find the area of the triangle formed by these coordinates |
a
| 24 |
b
| 54 |
c
| 60 |
d
| 6 |
e
| 12 |
f
| 78 |
3
| Find the area of the triangle formed by these coordinates |
a
| 26 |
b
| 54 |
c
| 18 |
d
| 14 |
e
| 38 |
f
| 42 |
4
| Find the area of the triangle formed by these coordinates |
a
| 76 |
b
| 24 |
c
| 44 |
d
| 32 |
e
| 12 |
f
| 40 |
5
| Find the area of the triangle formed by these coordinates |
a
| 21 |
b
| 18 |
c
| 17 |
d
| 15 |
e
| 19 |
f
| 14 |
6
| Find the area of the triangle formed by these coordinates |
a
| 34 |
b
| 20 |
c
| 36 |
d
| 38 |
e
| 2 |
f
| 16 |
7
| Find the area of the triangle formed by these coordinates |
a
| 7.5 |
b
| 18 |
c
| 3 |
d
| 24 |
e
| 4.5 |
f
| 15 |