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The diagram shows two right-angled triangles. Calculate the value of x.

The diagram shows two right-angled triangles. Calculate the value of x.-example-1
User Billzhong
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2 Answers

8 votes

The value of x is 4.655cm.

1. Identify the relevant triangles and sides:

We have two right-angled triangles in the diagram. Let's call the one on the left with the 38-degree angle triangle A and the one on the right with the 90-degree angle triangle B.

In triangle A, we are given the length of a side (5.9587 cm) adjacent to the 38-degree angle and need to find the length of the opposite side (x).

2. Use the tangent function:

Since we have an adjacent side and need to solve for the opposite side in a right-angled triangle, we can use the tangent function (tan).

The tangent of an angle in a right triangle is equal to the opposite side divided by the adjacent side (opposite/adjacent).

3. Apply the formula to triangle A:

For triangle A, we can write the equation as: tan(38°) = x / 5.9587 cm

4. Solve for x:

To find x, we can rearrange the equation to isolate it: x = tan(38°) * 5.9587 cm

Using a calculator, we can find that tan(38°) ≈ 0.7854.

Substituting this value, we get: x = 0.7854 * 5.9587 cm ≈ 4.655 cm

Therefore, the value of x is approximately 4.655 cm.

User Senem
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8 votes
52° would be the value of x
User Felixgaal
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