Answer: cools rapidly
Step-by-step explanation:
Some igneous rocks contain crystals of very different sizes. These
rocks formed from magma that started cooling within Earth and then
erupted onto the surface. The large crystals grew as the magma cooled
slowly. The small crystals grew as the lava cooled quickly.
Hope this helps!
Answer:
x-y=-4
Step-by-step explanation:
Step-by-step explanation:
PLS MARK ME AS BRAIN LIST ANSWER
Answer:
Blue square
Step-by-step explanation:
looking like rhombus because right angle is 90 degrees and a square has 4 right angles
Answer:a) 5 sides
b) 9 sides
Step-by-step explanation:
a) Since the polygon is a regular polygon, all the interior angles are equal. If one exterior angle is 72 degrees, the interior angle would be
180 - 72 = 108 degrees(sum of the angles on a straight line is 180 degrees)
The sum of the interior angles of a polygon is expressed as
180(n - 2)
Where n represents the number of sides that the polygon has. Since the interior angles are equal, then
108n = 180(n - 2)
108n = 180n - 360
180n - 108n = 360
72n = 360
n = 360/72 = 5
b) If one exterior angle is 40 degrees, the interior angle would be
180 - 40 = 140 degrees
Since the interior angles are equal, then
140n = 180(n - 2)
140n = 180n - 360
180n - 140n = 360
40n = 360
n = 360/40 = 9
