Answer:
a) The formula for the area of a circle
Step-by-step explanation:
The formula for the area of a circle is
A = πr²
π is an irrational number and, no matter what value you use for r, the area will be an irrational number,
b) is wrong. A = ½(a + b)h.
c) is wrong. A = ½bh.
d) is wrong. A = bh.
All measurements are rational numbers, so the areas will be rational numbers.
Step-by-step explanation:
78 = m32
m = 78/32 = 39/16 = 2.4375
10
Therefore, the greatest common factor of 30 and 50 is 10.
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