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प्रश्न
State the following statement is true or false? Why?
Every isosceles triangle is an equilateral triangle
पर्याय
True
False
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उत्तर
False
Explanation;
But every isosceles triangle need not be an equilateral triangle.
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संबंधित प्रश्न
Two angles of the triangle are given. Find the third angle.
80°, 60°
Two angles of the triangle are given. Find the third angle.
120°, 30°
Using the given information, write the type of triangle in the table given below
| S.No | ∠1 | ∠2 | ∠3 | Type of triangle based on angles | Type of triangle based on sides |
| i. | 60° | 40° | 80° | Acute angled triangle. | Scalene Triangle |
| ii. | 50° | 50° | 80° | ||
| iii. | 45° | 45° | 90° | ||
| iv. | 55° | 45° | 80° | ||
| v. | 75° | 35° | 70° | ||
| vi. | 60° | 30° | 90° | ||
| vii. | 25° | 64° | 91° | ||
| viii. | 120° | 30° | 30° |
Which of the following is not possible?
The diagram shows a square ABCD. If the line segment joins A and C, then mention the type of triangles so formed.
Is a triangle possible with the angles 90°, 90° and 0°? Why?
State the following statement is true or false? Why?
Every equilateral triangle is an isosceles triangle
If one angle of an isosceles triangle is 70°, then find the possibilities for the other two angles
Study the given figure and identify the following triangles.
(a) equilateral triangle
(b) isosceles triangles
(c) scalene triangles
(d) acute triangles
(e) obtuse triangles
(f) right triangles
Two sides of the triangle are given in the table. Find the third side of the triangle.
| SI. No. | Side - 1 | Side - 2 | The length of the third side (any three measures) |
| i. | 7 cm | 4 cm | |
| ii. | 8 cm | 8 cm | |
| iii. | 7.5 cm | 3.5 cm | |
| iv. | 10 cm | 14 cm |
