I don’t understand this math problem? Help please.?

So, I am not asking for the answer just HOW TO do it. Actually there is 2 questions.

1. About how much fence does Derrick need around his yard?
And i guess the area is 500 ft.

2. Jack climbed the beanstalk to find the San Francisco Giants playing baseball. How many square feet is the GIANT homeplate at the GIANT baseball game?

There is a picture of a home plate.

A= 6 feet (height)
B= 12 feet (base)
C= 9 feet (height going down the middle top to bottom)

Thank you for your help!
in number one all it says in the middle is 500 ft.

Renteria says skip party; help flood victims (AP)

World Series MVP Edgar Renteria has asked officials to cancel a celebration planned when he returns to his native Colombia and to donate the money to victims of flooding in the South American country. Renteria, who led the San Francisco Giants to the World Series title last week, made the request Tuesday from Miami.

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