Kelly loves to eat chocolate pizza. Each square inch of chocolate is 30 calories. She orders a slice of chocolate pizza from a pizza with a diameter of 12 inches that is cut with a central angle of 40 degrees. How many calories does she eat?

Question

anonymous · Answer

about 3,393 calories
		about 113 calories
		about 13 calories
		about 377 calories

might help you out alittle

anonymous · Answer

Hey trix?

anonymous · Answer

about 377 calories

anonymous · Answer

$$ \frac{22\times  4  \times 30}{7} $$

directrix · Answer

Kelly is eating a slice of pizza that is 40/360 or 1/9 of the pizza.

1/9 = K/ [2 ir (6^2)] where K is the area of Kelly's piece of pizz.

1/9 = K/ (72 pi)

9K = 72 pi

K = 8 pi square inches

Multiply that by 30 (calories per square inch)

anonymous · Answer

Hey Direct you good with slopes?

chriss · Answer

about 377 calories
the area is pi6^2 of the entire pizza... a 40 degree cut would give about 1/9th of the pizza pi6^2/9 is 12.566
multiply that by 30 and you get 376.99

anonymous · Answer

thanks everyone

chriss · Answer

you're welcome.  I had to pull out some old knowledge and think a bit for that one lol.