Her maiden heart was filled with pure love.

He has a strong sense of patriotism.

His heart is very strong.

He has a strong sense of public spirit and is always working for the community.

The carpel of this flower has a very unique shape.

His behavior aroused suspicion.

He always has a high sense of alertness.

He has a strong ambition and is always seeking self-improvement.

A journey to the Earth's core is a big challenge for scientists.

Could you please tell me how to calculate the excenter of this triangle?