This math topic focuses on solving for unknown angles within triangles that contain an isosceles triangle inside. It's part of a unit on basic problem-solving with 2D polygons, targeting angle calculations in geometric shapes. The problems are presented in a multiple-choice format, providing students with a set of possible numerical options for each question about the value of angle X in various triangle problems. The problems are visually aided by diagrams to help in understanding the geometric setup and to assist in calculating the unknown angles.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
moreGeometry Solve Angle - Triangle with Inside Isosceles Worksheet
| Math worksheet on 'Geometry Solve Angle - Triangle with Inside Isosceles (Level 1)'. Part of a broader unit on 'Geometry Problem Solving with 2D Polygons - Intro' Learn online: app.mobius.academy/math/units/geometry_general_problem_solving_2d_polygons_intro/ |
1
| What is angle X? |
a
| 110 |
b
| 95 |
c
| 125 |
d
| 85 |
e
| 100 |
2
| What is angle X? |
a
| 100 |
b
| 85 |
c
| 110 |
d
| 105 |
e
| 135 |
f
| 120 |
3
| What is angle X? |
a
| 30 |
b
| 25 |
c
| 75 |
d
| 65 |
e
| 50 |
4
| What is angle X? |
a
| 70 |
b
| 115 |
c
| 80 |
d
| 110 |
e
| 90 |
5
| What is angle X? |
a
| 75 |
b
| 45 |
c
| 50 |
d
| 70 |
e
| 90 |
f
| 55 |
6
| What is angle X? |
a
| 90 |
b
| 125 |
c
| 75 |
d
| 100 |
e
| 95 |
7
| What is angle X? |
a
| 100 |
b
| 125 |
c
| 115 |
d
| 105 |
e
| 90 |
f
| 110 |