Question

If $\Delta ABC$ is an obtuse triangle with $\angle B$ as the obtuse angle, then the measure of $\angle B$ _______ and measure of $\angle A$ and measure of $\angle C$ is $<{90}^o.$

• A. $<{90}^o$
• B. $>{90}^o$
• C. $<{180}^o$
• D. $>{180}^o$

Answer 1

The correct option is B $>{90}^o$

If $\Delta ABC$ is an obtuse angled triangle with $\angle B$ as the obtuse angle, then the measure of $\angle B>{90}^o$ and measure of $\angle A$ and measure of $\angle C$ is $<{90}^o.$

This can be verified by angle sum property.