Question

The sum of two acute angles can be:

• A. Acute angles
• B. Obtuse angles
• C. Right angles
• D. All of the above

Answer 1

The correct option is D All of the above

Let one angle is ${30}^o$ and the other angle is ${40}^o$ then sum is ${70}^o$. which is an acute angle.
Let one angle is ${70}^o$ and other angle is ${80}^o$, then sum is ${150}^o$ which is a obtuse angle.
Let one angle is ${45}^o$ and another angle is ${45}^o$ then sum is ${90}^o$ which is a right angle.

So correct answer is $\left(D\right)$