Grade 7 - Mathematics 7.13 Geometry Triangles - Review Test

Q 1: The perimeter of a triangle ABC is given by 45 cm. If the length of the side AB is 2 more than the length of the side BC and length of the side BC is 5 more than the length of the side CA, then the length of side AB is _________. 20 cm 18 cm 21 cm

Q 2: If angle A = angle B + angle C, then angle A is ______. 90 degrees 60 degrees

Q 3: The angles 30 degrees, 60 degrees and 90 degrees represents a (an) ________ angled triangle. Answer:

Q 4: The side opposite to the right angle in a right angled triangle is called the ________ of the triangle. Answer:

Q 5: The angles 90 degrees, 45 degrees and 45 degrees represents a (an) ________ triangle. Obtuse angled scalene Right angled isosceles Acute angled isosceles

Q 6: The incentre of a triangle is equidistant from its _____. Sides Angles

Q 7: A triangle always has _____. Exactly one acute angle Exactly one right angle Exactly two acute angles At least two acute angles

Q 8: In a right-angled triangle its orthocentre coincides with the _________. midpoint midpoint of the hypotenuse the excentres

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