Web13 apr. 2024 · A triangle has sides of (x+4) cm, (2x+6) cm and (3x-2) cm. Its perimeter is 80 cm. Show that the triangle is right angled and find its area. Solution. Forming an equation gives 6x+8=80 . This gives us x=12 and side lengths of 16 cm, 30 cm and 34 cm. Using Pythagoras’ Theorem. 16 2 +30 2 =1156 \sqrt{1156} = 34. Therefore, the triangle … Web13 jul. 2024 · a triangle which has got two equal sides two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other When an angle amounts 90* it is... When to lines intersect at right angle, they are... is formed by six identical square faces joined along their edges
ICSE Class 9 Mathematics Syllabus 2024 - 2024: Unit-wise Class …
WebThere are three special names given to triangles that tell how many sides (or angles) are equal. There can be 3, 2 or no equal sides/angles: How to remember? Alphabetically … WebIf in a triangle two sides are unequal, then the angle opposite to the longer side is greater than the angle opposite to the shorter side. Proof Let ABC be a triangle in which the side AC is longer than the side BC ( Figure 1 ). We need to prove that the angle ABC is greater than the angle BAC . feynman technology
TRIANGLE INEQUALITY THEOREM - SlideShare
WebYes this is possible for a triangle. The triangle would not be degenerate, even though it’s nearly degenerate. Any three interior angles that are positive and add to 180 degrees can form a non-degenerate triangle. ( 7 votes) Show more... Gabriel Bender 6 years ago What happens in the case of an isosceles triangle? X > 0? • 2 comments ( 7 votes) Web14 jun. 2024 · If two sides of one triangle are congruent to two sides of another triangle, but the third side of the first triangle is longer than the third side of the second, then the included angle of the first triang'e is larger than the included angle of the second. WebAnswer (1 of 6): It has 2 equal angles. There is a theorrm which says, angles opposite to equal sides of a triangle are equal. demichelis saint andiol