It shows the point value ur giving...
1. 1/2 is a half of 1 so, 2 X 1/2 X 4 = 2 so, 1/2 X 8 = 4 so, 8 X 2 = 16 so, 1/2 X 16 = 8 + 1/2 will be, 17 cubes make up 8 1/2 cm cubes.
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Cos(pi) = -1
You should have this memorized along with other values such as
sin(0) = 0
cos(0) = 1
sin(pi/2) = 1
cos(pi/2) = 0
sin(pi) = 0
cos(pi) = -1
sin(3pi/2) = -1
cos(3pi/2) = 0
and remember that tan = sin/cos
Answer:
12 and 23
Step-by-step explanation: