Test:
Angles, Straight Lines - Challenging
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Question 1:
Find an angle corresponding to
$\frac{15}{11}$
revolution
A
${245.45}^{\circ}$
B
${409.09}^{\circ}$
C
${151}^{\circ}$
D
${490.91}^{\circ}$
Question 2:
Find the angle
$\alpha $
:
A
$\sphericalangle \alpha =80\xb0$
B
$\sphericalangle \alpha =45\xb0$
C
$\sphericalangle \alpha =60\xb0$
D
$\sphericalangle \alpha =70\xb0$
Question 3:
One of the angles in a triangle equals to an arithmetic mean of all the angles of that triangle. What is the measure of that angle?
A
${45}^{\circ}$
B
${60}^{\circ}$
C
${90}^{\circ}$
D
${30}^{\circ}$
Question 4:
Find the angle
$\alpha $
, when
$p\parallel q$
:
A
${60}^{\circ}$
B
${40}^{\circ}$
C
${30}^{\circ}$
D
${50}^{\circ}$
Question 5:
Find the angle
$\alpha $
:
A
${90}^{\circ}$
B
${100}^{\circ}$
C
${70}^{\circ}$
D
${80}^{\circ}$
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