Enter what you know below
Since Angle A = 30°, calculate Angle BSum of all angles of a triangle = 180°,
so we have Angle B = 180° - 90° - 30°
Angle B = 60°
Right Triangle Formula
a2 + b2 = c2Rearrange this equation
a2 = c2 - b2Take the square root of both sides
a = √c2 - b2a = √52 - 42
a = √25 - 16
a = √9
a = 3
Calculate inradius:
| inradius = | ab |
| a + b + c |
| inradius = | (3)(4) |
| 3 + 4 + 5 |
| inradius = | 12 |
| 12 |
inradius = 1
Angle A = 30
Angle B = 60
Side A = 3
Side B = 4
Side C = 5
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What is the Answer?
Angle A = 30
Angle B = 60
Side A = 3
Side B = 4
Side C = 5
How does the Right Triangles Calculator work?
Free Right Triangles Calculator - This solves for all the pieces of a right triangle based on given inputs using items like the sin ratio, cosine ratio, tangent ratio, and the Pythagorean Theorem as well as the inradius.
This calculator has 5 inputs.
What 1 formula is used for the Right Triangles Calculator?
What 8 concepts are covered in the Right Triangles Calculator?
coscos(θ) is the ratio of the adjacent side of angle θ to the hypotenuseinradiusa radius of an inscribed circle or spherepythagorean theorema fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sidesa2 + b2 = c2ratioindicates how many times one number contains anotherright trianglessinsin(θ) is the ratio of the opposite side of angle θ to the hypotenusetangentthe straight line that just touches the curve at that pointtrianglea flat geometric figure that has three sides and three angles
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