45-45-90 Triangle
See how to solve a 45-45-90 triangle.
2 examples and their solutions.
45-45-90 Triangle
Definition, Property
whose interior angles are 45º, 45º, and 90º.
The ratio of the sides is
1 : 1 : √2.
So a 45-45-90 triangle is
an isosceles right triangle.
Example
↓
x = 7
[1]
45°, 90°
→ This is a 45-45-90 triangle.
→ Top angle: 45°
→ This is a 45-45-90 triangle.
→ Top angle: 45°
[2]
45-45-90 triangle is an isosceles triangle.
→ x = 7
→ x = 7
Close
Example
x√2 = 111 - [2]
x√2 = 11
x = 11√2
[1]
Isosceles right triangle
→ This is a 45-45-90 triangle.
→ Draw a (1, 1, √2) triangle.
→ This is a 45-45-90 triangle.
→ Draw a (1, 1, √2) triangle.
[2]
Close