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Solve for a in the given right-angled triangle with angles a, 3a, and 90 degrees.

May 15, 2026Mathematics

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The image shows a right-angled triangle. The sum of angles in a triangle is $180^\circ$ . One angle is indicated as $90^\circ$ by the square symbol. The other two angles are $a$ and $3a$ .

Set up the equation for the sum of the angles in the triangle.
$a + 3a + 90^\circ = 180^\circ$
Combine the terms with $a$ .
$4a + 90^\circ = 180^\circ$
Subtract $90^\circ$ from both sides of the

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Solve for a in the given right-angled triangle with angles a, 3a, and 90 degrees.

Step-by-step solution

Set up the equation for the sum of the angles in the triangle.

Combine the terms with aaa.

Subtract 90∘90^\circ90∘ from both sides of the

Still stuck on this one?

More Mathematics Questions

Combine the terms with $a$ .

Subtract $90^\circ$ from both sides of the