# Isosceles triangle 8

If the rate of the sides of an isosceles triangle is 7:6:7, find the base angle correct to the nearest degree.

## Correct answer:

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Calculation of an isosceles triangle.

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See also our trigonometric triangle calculator.

Calculation of an isosceles triangle.

Do you want to round the number?

See also our right triangle calculator.

See also our trigonometric triangle calculator.

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

**arithmetic**- rounding
**planimetrics**- right triangle
- triangle
**basic functions**- ratio
**goniometry and trigonometry**- cosine
- arcsine
- arccosine

### Units of physical quantities:

### Grade of the word problem:

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