A tile installer plots an irregular shape on grid paper. Each square on the grid represents 1 square centimeter. What is the area of the irregular shape?
The area of the irregular shape is

area of a triangle = 0.5 X base X height

0.5 X 4 X 4 = 8 cm^

area of a rectangle l X w

3 X 5 = 15 cm^

area of a parallelogram = base X height

5 X 3 = 15 cm^

add totals together

15 + 15 + 8 = 38 cm^

can you post the graph?

large crystals result from very slow cooling.

evaporation of water: this would produce an evaporite which is a sedimentary rock. like a salt pan in a desert. not possible to have volcanic rocks originate this way.

crystalization in molten earth: slow cooling over time. (hundreds to millions of years)

crystalization at earth's surface: this results in fast cooling. (a few hours to a few months or years)

crystalization from cooling off hot water: that would be a hydrothermal deposit. while associated with volcanics they are not volcanic rocks themselves and usually occur fairly rapidly.