the right angle is 90 degrees, the line is 180 so 180-90 is 90 so 6X+4 + 5X-2= 90 you can counter the -2 by using the +4 so it just becomes +2 90-2=88 so the answer is 8
The surface area of the sphere: A = 4 r² π 1 ) r = 60 m; A = 4 · 60² π = 4 · 3600 π = 14,400 π m² 2 ) Diameter of 14 cm: r = 14 cm / 2 = 7 cm A = 4 · 7² π = 4 · 49 π = 196 π cm²
