The answer is 24cm. Because a triangle has 3 sides, and the triangle is equilateral, which means all the sides of the triangle are equal. So since all 3 sides add up to 72cm, we can do 72/3 which is 24. Each side of the triangle is 24cm
Answer:Answer:
the added person age is 26
Step-by-step explanation:
let the added person age is A
the six person mean is (23+19+12+21+13+A)/6=19
=> 88+A/6=19
=>A=(19×6)-88
there fore A=26
Answer:
The mean is 8.3.
Step-by-step explanation:
Answer:
z= 1/3
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