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Matemática

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3. (UNEB)<br />

Se, no triângulo ABC, representado na figura, a altura relativa à base AB mede 4u.c., então o lado AB mede, em u.c.,<br />

01) 4(1 3 3)<br />

02) 4(1<br />

2 3)<br />

03) 4(1 3)<br />

04) 4(1<br />

3<br />

)<br />

3<br />

05) 4<br />

3<br />

3<br />

4. (UNEB) Sendo A = tg30°, B = sec45° e C = sen60°, é verdade que:<br />

01) C < B < A<br />

02) B < C < A<br />

03) B < A < C<br />

04) A < C < B<br />

05) A < B < C<br />

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