Properties of triangles

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Read each question carefully and select the correct answer

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Erika Corredor

Colombia

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Properties of triangles


Properties of trianglesOnline version Read each question carefully and select the correct answer by Erika Corredor 1 What is the sum of the interior angles of any triangle? a 180° b 360° c 90° d 120° 2 If a triangle has sides of different lengths, what is it called? a Isosceles triangle b Equilateral triangle c Scalene triangle d Acute-angled triangle 3 In a right triangle, what is the name of the side opposite the 90° angle, which is also the longest side? a Base b Leg c Hypotenuse d Height 4 If an isosceles triangle has an obtuse angle of 120°, what are the measures of each of the other two interior angles? a 40° b 20° c 90° d 60° 5 According to the property of an exterior angle, what is the measure of an exterior angle if its two opposite interior angles measure 45° and 75°? a 120° b 60° c 80° d 30° 6 What is a triangle with all sides equal called? a Scalene triangle b Obtuse triangle c Equilateral triangle d Right triangle 7 Which triangle has one angle equal to 90 degrees? a Acute triangle b Scalene triangle c Right triangle d Isosceles triangle 8 The sum of interior angles in any triangle is? a 90 degrees b 180 degrees c 120 degrees d 200 degrees 9 A triangle with two equal sides is called? a Scalene triangle b Right triangle c Obtuse triangle d Isosceles triangle 10 A triangle with all angles less than 90 degrees is? a Acute triangle b Right triangle c Right triangle d Obtuse triangle 11 If two interior angles of a triangle measure 45° and 65°, what is the measure of the third angle? a 90° b 80° c 70° d 60° 12 According to the Triangle Inequality Theorem, which of the following sets of numbers can represent the side lengths of a triangle? a 5,7,10 b 2,3,6 c 4,4,9 d 1,5,8 13 n a triangle ABC, angle A is 80°, angle B is 60°, and angle C is 40°. Which side is the longest? a The side opposite to angle B (Side AC) b The side opposite to angle C (Side AB) c All sides are equal d The side opposite to angle A (Side BC) 14 You have a right-angled triangle. If the two shorter sides (legs) measure 3 cm and 4 cm, what is the length of the longest side (hypotenuse)? a 6cm b 7cm c 5cm d 12cm 15 What is the area of a triangle that has a base of 10 meters and a height of 6 meters? a 16 square meters b 60 square meters c 30 square meters d 45 square meters 16 1.What is the sum of the interior angles of any triangle? a 90° b 180° c 270° d 360° 17 Which type of triangle has all three sides equal? a Scalene triangle b Isosceles triangle c Equilateral triangle d Right triangle 18 In a triangle, which condition must be true according to the triangle inequality theorem? a The sum of any two sides is less than the third side b The sum of any two sides is equal to the third side c The sum of any two sides is greater than the third side d All sides must be equal 19 What type of triangle has one angle equal to 90°? a Right triangle b Obtuse triangle c Acute triangle d Equilateral triangle 20 Which triangle has all angles less than 90°? a Right triangle b Obtuse triangle c Acute triangle d Isosceles triangle 21 In Which of the triangles is the 180 degree rule fulfilled? a Acute triangle b Right triangle c Obtuse triangle d All of the above 22 2.What is the formula for the área o fan equilateral triangle? a √3/4×s^2 b b×h/2 23 What is one of the properties o fan isósceles triangle? a Where both of its sides have the same length b It has a straight side of 90 degrees c Its thres internal angles measure les tan 90 degrees d It has three sides of different lengths 24 Which triangle is easily recognized by the fact that two of its sides are equal? a Equilateral triangle b Isosceles triangle c Scalene triangle d Acute triangle 25 Which triangles function as geometric shortcuts? a Isosceles triangle b Right triangle c Equilateral triangle d All of the above

Properties of triangles

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Properties of trianglesOnline version

by Erika Corredor

What is the sum of the interior angles of any triangle?

If a triangle has sides of different lengths, what is it called?

In a right triangle, what is the name of the side opposite the 90° angle, which is also the longest side?

If an isosceles triangle has an obtuse angle of 120°, what are the measures of each of the other two interior angles?

According to the property of an exterior angle, what is the measure of an exterior angle if its two opposite interior angles measure 45° and 75°?

What is a triangle with all sides equal called?

Which triangle has one angle equal to 90 degrees?

The sum of interior angles in any triangle is?

A triangle with two equal sides is called?

A triangle with all angles less than 90 degrees is?

If two interior angles of a triangle measure 45° and 65°, what is the measure of the third angle?

According to the Triangle Inequality Theorem, which of the following sets of numbers can represent the side lengths of a triangle?

n a triangle ABC, angle A is 80°, angle B is 60°, and angle C is 40°. Which side is the longest?

You have a right-angled triangle. If the two shorter sides (legs) measure 3 cm and 4 cm, what is the length of the longest side (hypotenuse)?

What is the area of a triangle that has a base of 10 meters and a height of 6 meters?

1.What is the sum of the interior angles of any triangle?

Which type of triangle has all three sides equal?

In a triangle, which condition must be true according to the triangle inequality theorem?

What type of triangle has one angle equal to 90°?

Which triangle has all angles less than 90°?

In Which of the triangles is the 180 degree rule fulfilled?

2.What is the formula for the área o fan equilateral triangle?

What is one of the properties o fan isósceles triangle?

Which triangle is easily recognized by the fact that two of its sides are equal?

Which triangles function as geometric shortcuts?