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CBSE Class 10 Answered

your study room is shaped like a rectangle it has a area of 28 square cm and diameter 22 cm can you tell its dimensional
Asked by yogitamanojkumar | 09 Jan, 2023, 04:01: PM
answered-by-expert Expert Answer
The question must be:
Your study room is shaped like a rectangle it has a area of 28 square cm and perimeter 22 cm can you tell its dimensional
 
The room is rectangular in shape with area 28 square cm
 
Area of rectangle = 28 cm2
Perimeter of a room = 22 cm
Let space apostrophe straight l apostrophe space and space apostrophe straight b apostrophe space be space the space length space and space breadth space of space straight a space rectangle rightwards double arrow 2 left parenthesis straight l plus straight b right parenthesis equals 22 rightwards double arrow straight l plus straight b equals 11 Also comma space Area space of space rectangle space equals space straight l cross times straight b rightwards double arrow space 28 space equals space straight l cross times straight b rightwards double arrow space 28 equals straight l left parenthesis 11 minus straight l right parenthesis rightwards double arrow straight l squared minus 11 straight l plus 28 equals 0 rightwards double arrow straight l squared minus 7 straight l minus 4 straight l plus 28 equals 0 rightwards double arrow straight l left parenthesis straight l minus 7 right parenthesis minus 4 left parenthesis straight l minus 7 right parenthesis equals 0 rightwards double arrow left parenthesis straight l minus 7 right parenthesis left parenthesis straight l minus 4 right parenthesis equals 0 rightwards double arrow straight l equals 7 space or space straight l equals 4 When space straight l equals 7 space rightwards double arrow space straight b equals 4 When space straight l equals 4 space rightwards double arrow space straight b equals 7 So comma space the space dimension space of space the space rectangle space is space 7 cm space cross times space 4 cm.
Answered by Renu Varma | 10 Jan, 2023, 10:58: AM

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CBSE 10 - Maths
your study room is shaped like a rectangle it has a area of 28 square cm and diameter 22 cm can you tell its dimensional
Asked by yogitamanojkumar | 09 Jan, 2023, 04:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Meena and Seema alone can complete the whole work in (9y+3) days and 9z days, respectively and Reena and Kisan alone can complete the whole work in (2x + 2) days and (x - y) days, respectively. Reena and Chhaya together can complete the whole work in 18 days and Jaya and Payal together can complete the whole work in 24 days. Payal and Chhaya alone can complete the whole work in (10z + 2) days, and 6z days respectively. Kisan and Ira together can complete the whole work in 120/7 days and Ira and Jaya alone can complete the whole work in (x + y) days and 14z days, respectively. Find x, y and z.
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CBSE 10 - Maths
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CBSE 10 - Maths
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CBSE 10 - Maths
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CBSE 10 - Maths
Guru was born in 1809 ad.in year x2 ad he.  was ( x  -3) years old find the value of x
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