# Inclined plane

The body stays on an inclined plane and exerts a compressive force of 70N on it.

Find the angle between the inclined plane and the horizontal if a gravitational force of 100N acts on the body.

Find the angle between the inclined plane and the horizontal if a gravitational force of 100N acts on the body.

## Correct answer:

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### You need to know the following knowledge to solve this word math problem:

**geometry**- similarity of triangles
**planimetrics**- right triangle
- triangle
**goniometry and trigonometry**- sine
- cosine

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