1) The sum of all angles of a triangle is a) 180 b) 360 c) 90 d) 270 2) The triangle whose one angle is 90 degree is known as a) Right angle triangle b) actue angle triangle c) obtuse angle triangle d) equilateral triangle 3) The triangle whose two sides are equal is known as a) equilateral triangle b) right angles triangle c) scalene triangle d) Isosceles triangle 4) The measure of all angles of equilatral triangle is a) 90 b) 60 c) 45 d) 25 5) which triangle has all three sides unequal a) Right angle triangle b) scalene triangle c) Acute triangle d) Equilateral triangle

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