How many angles less than 180° exist in the figure below?

An angle of 180 ° will represent a straight line.

If we look at the figure < A consists of four angle .The four angles are <BAC,<CAD ,<DAE and <BAE. All these angles are less than 180°

Other angles which are less than 180 ° in the given figure are <ABE,<ACB,<ACD,<ADC,<ADE and <AED that is 6 in all.

The total angles which are less than 180° in the given figure is 4+6=10 in all.

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.