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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
7.8 Relation Between Sides and Angles of a Triangle

Points to remember:

  1. The sum of the measures of any two sides of a triangle is greater than the measure of the third side.

  2. The difference of the measures of any two sides of a triangle is less than the measure of the third side.

  3. If two sides of a triangle are unequal, the measure of the angle opposite to the longer side is greater than the measure of the angle opposite to the shorter side.

  4. If two angles of a triangles are unequal, then the side opposite to the greater angles is longer than the side opposite to the smaller angle.

  5. No two angles of a scalene triangle are congruent.

Directions: Read the above review points carefully and answer the following questions:
  1. Illustrate each of the above review points by using the triangle given below.
  2. Illustrate each of the above review points by drawing a triangle of your own.
  3. Explain in your own words the relation between the sides and angles of a triangle with examples.

Q 1: If BC = 10 cm and CA = 15 cm are the sides of ABC, then the measure of AB is greater than 5 cm.
False
True

 Q 2: If, in ABC, AB = AC, then ÐC = ÐB.
False
True

Q 3: If, in ABC, ÐB = 100°, then AC is the longest side.
True
False

 Q 4: If, in ABC, AB < AC, then ÐC > ÐB.
False
True

Q 5: If, in ABC, ÐA = 100° and ÐB = 50°, then a < b.
False
True

 Q 6: If, in ABC, ÐA and ÐB are complementary, then it is a right angled triangle.
True
False

Q 7: If, in ABC, AB > BC, then ÐA < ÐB.
True
False

 Q 8: If, in ABC, ÐA = 30° and ÐB = 60°, then AB is the longest side.
True
False

Question 9: This question is available to subscribers only!

 Question 10: This question is available to subscribers only!


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