Answer: 216 cm squared Step-by-step explanation: Bottom: a single 6*6=36 4 sides: 6*5=30 each Triangles 6 by 5. the formula for a triangle means that 2 of the triangles equals a square 6*5*2=60 36+120+60=216 cm squared
AR is 3 using Pythagoras 5^2 - 4^2 = 3^2. sin R is just sin (AC/RC). cos is adjacent over hypoteneus. tan is oppositve over adjacent. and sec is 1/cos, csc is 1/sin, and cot is 1/tan.
