En utilisant la figure
ci-contre, dire si ces
égalités sont vraies ou
fausses. Justifier.
a. OS² + SR² = OR²
C.
e.
OS² + SI² = 01²
SR = SI + IR
0
b.
d.
I
OR=01 IR
SI²+10²=SR²
f. SR2=OR2-S0²
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