Grade 7 - Mathematics 7.13 Geometry Triangles - Review Test

Q 1: If, in a triangle, 70 degrees, 55 degrees and 55 degrees represents its angles, then the triangle is a (an) ________. Right angled isosceles triangle Obtuse angled isosceles triangle Acute angled isosceles triangle

Q 2: Find the value of 'b', if the angles of a triangle are 45 degrees, 52 degrees and b degrees. Answer:

Q 4: If, in ABC, ÐA and ÐB are complementary, then it is a right angled triangle. True False

Q 5: If, in ABC, AB = AC, then ÐC = ÐB. True False

Q 6: In an isosceles triangle one of the angles is of degree measure 90. The triangle is a (an) ___________ triangle. Right isosceles Obtuse isosceles Acute isosceles

Q 7: Two circles are congruent if they have the same ______. arc radius center

Q 8: The ______ of a triangle is the point of concurrence of the altitudes of the triangle. excentres centroid orthocentre

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