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The length of diagonals of a rhombus are 24cm and 10cm. The length of each sideof a rhombus is |
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Answer» • The length of diagonals of a rhombus are 24cm and 10cm. • The length of each side of a rhombus. ✰ Here, we are given that the length of diagonals of a rhombus are 24cm and 10cm. We have to FIND the length of each side of a rhombus .In order to calculate the length of each side of a rhombus, we'll use the properties of the rhombus. And by using the pythagoras property we'll find the length of each side of a rhombus. ⠀⠀⠀⠀⠀_____________Let's make the diagram first. So, it'll be easy to understand the concept & the question. [Refer to the ATTACHMENT.] Say the rhombus as ABCD. As we know that, • Diagonals of a rhombus bisect each other. [ Here, O is the point where the diagonals are bisecting each other. ] So, → AO = OC → AC = AO + OC → 10 cm = AO + OC Let's say AO and OC as y each. ( Since, they are equal.) → 10 cm = y + y → 10 cm = 2y → → 5 cm = y Therefore, → AO = 5 cm → OC = 5 cm Similarly, → DO = OB → DB = DO + OB → 24 cm = DO + OB Let's say DO and OB as z each. ( Since, they are equal.) → 24 cm = z + z → 24 cm = 2z → → 12 cm = z Therefore, → DO = 12 cm → OB = 12 cm Now, as we know that : • Diagonals of a rhombus bisect each other at 90° & all the sides of a rhombus are equal. So, here we can find the length of its side by pythagoras property. Rhombus is divided into 4 right angles of same base, HYPOTENUSE and perpendicular. As all the sides of a rhombus are equal, so let's find only the one side of the rhombus now. All the sides will be of the same length. Let, In ∆ ABO : • AB = Side (hypotenuse) or X • AO = Height • OB = Perpendicular By using pythagoras property, → H² = B² + P² → AB² = AO² + OB² → x² = 5² + 12² → x² = 25 + 144 → x² = 169 cm → x =√169 → x = 13 So, → AB = 13 cm Therefore, |
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