A 12 foot extension ladder makes a 75 degree angle with the ground, which is level. The ladder reaches a height of H feet above the ground as shown.

Can someone help me find what I am doing wrong here? Thanks in advance!

Step-by-step explanation:

hope this helps you...........

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.

you need to give more info