Question

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Answer 1

a) D= a√2
D=2,5√2

A= 2,5.2,5= 6,25cm²
At= 6,25.6= 37,5cm²

v= 2,5³
v= 15,625cm³

b) d=√a²+b²+c²
D=√2²+1,5²+3²
D=√4+2,25+9
D=√15,25
D= 3,9

A= 2.1,5.2=6
A=3.1,5.2=9
A=2.3.2=12
At= 27cm²

v= 2.1,5.3
v=9cm³