# Ratio iso triangle

The ratio of the sides of an isosceles triangle is 7:6:7. Find the base angle to the nearest answer correct to 3 significant figures.

### Correct answer:

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Calculation of an isosceles triangle.

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Calculation of an isosceles triangle.

Do you want to convert time units like minutes to seconds?

See also our right triangle calculator.

See also our trigonometric triangle calculator.

Try conversion angle units angle degrees, minutes, seconds, radians, grads.

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

**algebra**- expression of a variable from the formula
**planimetrics**- right triangle
- triangle
**basic functions**- ratio
- percentages
**goniometry and trigonometry**- sine
- cosine
- tangent
- arctangent
- arcsine
- arccosine

#### Units of physical quantities:

#### Grade of the word problem:

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