The legs of a triangle with a hypotenuse that measures 15 units long have lengths that are equal to 15 times the sine or cosine of the given angle.
leg 1 = (15 units) x (cos 19) = 14.18 units
leg 2 = (15 units) x (sin 19) = 4.88 units
The lengths of the legs are 14.18 units and 4.88 units.
By going through the rock cycle igneous rock can change into any other type of rock, so A. any of the above
A/3=7/10
21=10a
a=2.1
100a=100*2.1=210
