# 8.10.5. Classification of Triangles According to Their Angles

In , is a median, cm, cm, and cm. Determine the type of the according to the measures of its angles.

• Aobtuse
• Bacute
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Given that cm and cm, determine the type of the according to the measures of its angles.

• Aright-angled triangle
• Bacute-angled triangle
• Cobtuse-angled triangle
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In , cm, cm, and cm. Determine the type of .

• Aright angle
• Bobtuse
• Cacute
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In , cm, cm, and cm. Determine the type of that triangle according to its angles.

• Aright triangle
• Bacute triangle
• Cobtuse triangle
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In the figure below, is a quadrilateral in which cm, cm, cm, and cm. What is the type of according to the measures of its angles?

• Aacute-angled
• Bobtuse-angled
• Cright-angled
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is a triangle in which , , then .

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Given that is an obtuse-angled triangle at , where cm and cm, which of the below can be the length of .

• Acm
• Bcm
• Ccm
• Dcm
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Given that is an obtuse-angled triangle at , where cm and cm, then can equal cm.

• A27
• B42
• C54
• D35
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If is an acute-angled triangle, in which cm and cm, which of the below is a possible length of ?

• Acm
• Bcm
• Ccm
• Dcm
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Given that a triangle has side lengths of cm, cm, and cm, find its area approximated the nearest hundredth, if needed.

• A
• B
• C
• D
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Given that is a rhombus in which cm and cm, what is the type of according to its angles?

• Aan acute triangle
• Ba right-angled triangle
• Can obtuse triangle
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