We are given a right triangle with hypotenuse of 12 cm and one angle of 45 degrees. We are asked to find the lengths of the other two sides, $x$ (opposite) and $y$ (adjacent).

GeometryRight TriangleTrigonometrySineCosine45-45-90 Triangle
2025/3/10

1. Problem Description

We are given a right triangle with hypotenuse of 12 cm and one angle of 45 degrees. We are asked to find the lengths of the other two sides, xx (opposite) and yy (adjacent).

2. Solution Steps

We are given that the angle is 45 degrees, the hypotenuse is 12 cm.
We can use the sine function to find the length of the opposite side, xx:
sin(θ)=oppositehypotenusesin(\theta) = \frac{opposite}{hypotenuse}
sin(45)=x12sin(45^\circ) = \frac{x}{12}
x=12sin(45)x = 12 * sin(45^\circ)
Since sin(45)=22sin(45^\circ) = \frac{\sqrt{2}}{2},
x=1222x = 12 * \frac{\sqrt{2}}{2}
x=62x = 6\sqrt{2}
We can use the cosine function to find the length of the adjacent side, yy:
cos(θ)=adjacenthypotenusecos(\theta) = \frac{adjacent}{hypotenuse}
cos(45)=y12cos(45^\circ) = \frac{y}{12}
y=12cos(45)y = 12 * cos(45^\circ)
Since cos(45)=22cos(45^\circ) = \frac{\sqrt{2}}{2},
y=1222y = 12 * \frac{\sqrt{2}}{2}
y=62y = 6\sqrt{2}

3. Final Answer

x=62x = 6\sqrt{2}
y=62y = 6\sqrt{2}

Related problems in "Geometry"

A regular hexagon is inscribed in a circle with radius 10 cm. We need to find: 1. The length of one ...

HexagonCircleAreaPerimeterGeometric Shapes
2025/5/31

The problem asks us to eliminate the $xy$ term from the given equation $x^2 + xy + y^2 = 6$ by rotat...

Conic SectionsEllipseRotation of AxesCoordinate Geometry
2025/5/30

We are given several equations and asked to identify the conic or limiting form represented by each ...

Conic SectionsCirclesHyperbolasCompleting the Square
2025/5/30

The problem is to identify the type of conic section represented by each of the given equations. The...

Conic SectionsEllipseHyperbolaParabolaEquation of a Conic
2025/5/30

The problem asks for the $xy$-equation of a vertical ellipse centered at $(0, 0)$ with a major diame...

EllipseCoordinate GeometryEquation of an EllipseGeometric Shapes
2025/5/30

We are asked to identify the type of conic section represented by each given equation. The equations...

Conic SectionsEllipseHyperbolaParabolaEquation Analysis
2025/5/30

The problem asks us to identify the type of conic section represented by the given equation: $-\frac...

Conic SectionsParabolaHyperbolaEquation AnalysisCoordinate Geometry
2025/5/30

We are asked to find the standard equation of a parabola given its focus or directrix, assuming that...

ParabolaConic SectionsStandard Equation
2025/5/30

The problem asks us to find the coordinates of the focus and the equation of the directrix for each ...

Conic SectionsParabolasFocusDirectrixAnalytic Geometry
2025/5/30

Let $ABC$ be any triangle and let $P$ be any point of the segment $AB$. The parallel to the line $BC...

Triangle GeometryParallel LinesMidpoint TheoremSimilar TrianglesThales' Theorem
2025/5/29