Answer:
a) 12cm
b) 360cm²
c) 2160cm cubed
Step-by-step explanation:
a)
you would use Pythagoras theorem for A
so half of 18 is 9
15² - 9² = 144
the square root of 144 is 12
the height is 12cm
b)
18 x 20 = 360cm²
c)
csa x L
csa = b x h divide by 2
18 x 12 = 216cm²/2 = 108cm²
108xm² x 20cm = 2160cm cubed
4x^6 / (2x - 6)
4x^6 / 2(x - 3)
2x^6 / (x - 3)
Only one section should be coloured in because it's 1/8 of the spinner. Meaning, there is one chance of landing on any colour.
