To Construct a Triangle whose Three Sides are given. (vi) A triangle with unequal sides is called a ……………………… (v) A triangle whose 2 sides are equal is called a ……………………… (iv) A triangle with all sides equal is called a ……………………… (iii) A triangle can be classified on the basis of ……………………… (i) A triangle is ……………………… sided polygon. (e) A triangle can have two obtuse angles. isosceles, obtuse ii) isosceles, right iii) isosceles, right i)-xiii) Check to. (d) Equiangular triangle has its three sides also equal. worksheet, as shown, and see how every question matches up with its answer. (b) If one angle of a triangle is obtuse, the other two angles must be acute. (a) All the angles of an isosceles triangle are equal. Find the other acute angle.ġ6. Say whether the following statements are true or false: What kind of triangle is this?ġ5. One of the acute angles of a right triangle is 48°. Find the length of its third side.ġ4. Each side of a ∆ is one third of its perimeter. Determine the other angles.ġ3. The perimeter of a triangle is 24 cm. Find the measure of each angle of the triangle.ġ2. One of the two equal angles of an isosceles triangle measures 55°. Measure its sides andĬlassify the triangle as Isosceles triangle, scalene triangle or equilateralġ1. The angle of a triangle is in the ratio of 2: 3: 4. This worksheet is a great resources for the 5th, 6th Grade, 7th Grade, and 8th Grade. You may select equilateral, right scalene, right isosceles, obtuse scalene, obtuse isosceles, acute scalene and acute isosceles. In this example, the equation is A 1/2 x 208. This Triangle Worksheet will produce twelve problems for identifying different types of triangles. For instance, if the base of the isosceles triangle is 8 cm and the height is 26 cm, then the equation is area 1/2 (8 x 26). (a) AB = 7.6 cm, BC = 4.5 cm, CA = 6.3 cm. Substitute the known values of the isosceles triangle into the formula. (e) 50°, 50°, 90° (f) 10 cm, 12 cm, 2 cm.Ĩ. Find the perimeter of a triangle when its sides are: (f) 3.5 cm, 3.5 cm, 4.5 cm.ħ. Is it possible to have a triangle with the following angles and sides? Give reason in support of your answer. Classify the triangle according to sides, that is, equilateral, isosceles and scalene triangles
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