Mathematics
Grade9
Easy
Question
The term that best describes angle d is (remember that it's outside)
- Remote interior angle
- Corresponding angle
- Exterior angle
- Interior angle
Hint:
The angle d lies out side of the triangle making with the triangle side and extended side.
The correct answer is: Exterior angle
The term that best describes angle d is (remember that it's outside) exterior angle as it is angle that lies on extended side of triangle and lies out side of triangle.
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¶A triangle has three angles or sides, and the sum of the angles or sides is always 180 degrees, the missing angle in the triangle's measurement is found by first taking the sum of the other two angles and then subtracting that number from 180.
Exterior Angle of Triangle Properties
The exterior angles of a triangle have three fundamental properties.
• In a triangle, every exterior angle and corresponding interior angle create a linear pair of angles. So, the interior and exterior angles add up to 180°.
• A triangle's exterior angle equals the sum of its two opposite interior angles (remote interior angles). The Exterior Angle Theorem is another name for this.
• The sum of the exterior angle of a triangle is 360°.
¶
Exterior Angle of Triangle Properties
The exterior angles of a triangle have three fundamental properties.
• In a triangle, every exterior angle and corresponding interior angle create a linear pair of angles. So, the interior and exterior angles add up to 180°.
• A triangle's exterior angle equals the sum of its two opposite interior angles (remote interior angles). The Exterior Angle Theorem is another name for this.
• The sum of the exterior angle of a triangle is 360°.
¶
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¶A triangle has three angles or sides, and the sum of the angles or sides is always 180 degrees, the missing angle in the triangle's measurement is found by first taking the sum of the other two angles and then subtracting that number from 180.
Exterior Angle of Triangle Properties
The exterior angles of a triangle have three fundamental properties.
• In a triangle, every exterior angle and corresponding interior angle create a linear pair of angles. So, the interior and exterior angles add up to 180°.
• A triangle's exterior angle equals the sum of its two opposite interior angles (remote interior angles). The Exterior Angle Theorem is another name for this.
• The sum of the exterior angle of a triangle is 360°.
¶
Exterior Angle of Triangle Properties
The exterior angles of a triangle have three fundamental properties.
• In a triangle, every exterior angle and corresponding interior angle create a linear pair of angles. So, the interior and exterior angles add up to 180°.
• A triangle's exterior angle equals the sum of its two opposite interior angles (remote interior angles). The Exterior Angle Theorem is another name for this.
• The sum of the exterior angle of a triangle is 360°.
¶
