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15 feet.Transcript

Time | Transcript |
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00:00 - 00:59 | hello students to the question for 2 days we are given a floor of a room which measures 12 feet by 9 feet out the rectangular room and where to find the length of the largest rod that can be placed on the floor of the students have already it on the go for you so it will look something like this so this is 9312 and so we have to find the length of the largest how to know that the length of the largest long can we do it has to be the diagonal so so that I've drawn the diagonal of the rectangle and we just have to find the length of the diagonal ok so now we know that in rectangle opposite sides are equal to visit this is also 12 ok so now we know that this is a right angled triangle and we just have to find the hypotenuse of that ok now we will use the Pythagoras theorem |

01:00 - 01:59 | find the hypotenuse of the triangle to basically using the Pythagoras Theorem let this triangle be named as a b c d using Pythagoras theorem square is equal to X square + a the now we know the length of a DC and AC servicing b square is equal to 9 12 square is equal to 98144 basically we will get 225 the length of |

02:00 - 02:59 | that by using a b got the length of the easy which is 15.2 now the length of the largest not that can be placed on the floor of the room so much |

**Introduction**

**TRIANGLE A plane figure formed by three non-parallel line segments is called a triangle.**

**SIDES The three line segments `AB BC and CA` that form the triangle `ABC` are called the sides of the triangles `ABC.`**

**ANGLES The three angles `\_ BAC \_ ABC and \_ACB` are called the angles of `DeltaABC`.**

**ELEMENTS OR PARTS The three sides `AB BC CA` and three angles `\_A \_B \_C` of a `DeltaABC` are together called the six parts or elements of the `DeltaABC.`**

**INTERIOR The part made up by all such points P which are enclosed by `DeltaABC` is called the interior of `DeltaABC.`**

**EXTERIOR The part made up by all such points Q which are not enclosed by `DeltaABC` is called the exterior of `DeltaABC`.**

**TRIANGULAR REGION The interior of `DeltaABC` together with the `DeltaABC` itself is called the triangular region `ABC`.**

**Naming of triangles by considering the lengths of their sides scalene triangle A triangle whole no two sides are equal is called a scalene triangle.**

**ISOSCELES TRIANGLE A triangle whose two sides are equal is called an isosceles triangle.**