Question

If an angle measuring 60${}^{\circ }$ is divided in the ratio of 1:3, then the bigger angle will measure ___.

• A. 25${}^{\circ }$
• B. 75${}^{\circ }$
• C. 30${}^{\circ }$
• D. 45${}^{\circ }$

Answer 1

The correct option is D 45${}^{\circ }$

Let the two parts be x and 3x.

⇒ 4x = 60

⇒ x = ${15}^{\circ }$

So, the bigger part is ${45}^{\circ }$.