Answer:
C
Step-by-step explanation:
Answer:
A) 20 degrees
Step-by-step explanation:
The sine of an angle is equal to the cosine of the angles complimentary angle.
2x^2 = 50
x^2 = 25
x = + or - 5
Answer:
Step-by-step explanation:
SA=2lw+2lh+2wh - Formula
SA=2(12×20)+2(12×15)+2(20×15)
SA=(2×240)+(2×180)+(2×300)
SA=480+360+600
SA=1440