In the area of four walls of a rectangahat room & mig is 168 er wat will be me permeten The area of the floor of the rectangular room is 72. Ir me where carpet is 24
the length of the carpet that will be needed to cover the floor of the room
The area of the floor of a square room is 81 m. If the width of the carpets 27 m. fon the
length of the carpet that will be needed to cover the floor of the room
The area of 4 walls and ceiling of a room is 107 m. If the room is 6 m long and sm wide hos
high is the room?
The area of 4 walls and ceiling of a room is 118 m. If the room is 6 mlangand 4 m high,
will be the width of the room?
What is the cost of carpeting a room 8 m long, the breadth being 75% of its length at the
of Rs 39 per m2
The length of the squared room is 6 m. What will be the cost of carpeting the foot of there
with the carpet of width 15 mat Rs 200 per meter
The cost of carpeting the floor of a room, whose breadth is twice its height and leeg​

Study guide for unit 2 ~ lesson 3 ,4, & 5 test, thursday, january 24th lesson 3 vocabulary erosion - deposition - landform- weathering- short answers 1. how do volcanic islands form? 2.why is deposition likely to occur outside a river bend? 3. in what conditions does soil form fastest? 4. which 2 earth’s systems interact to form a coral island? 5. a beach growing in size is most likely the result of 6. which type of islands are formed when a chunk of land breaks off from a larger landmass? long answers explain how plants can grow in small cracks of rock that do not appear to contain soil. lesson 4 vocabulary pollution - toxic - short answers 1. most farmers pollute soil by purposefully adding 2. what is the benefit of contour plowing? . 3. using nuclear power to produce electricity can cause water pollution by 4. why do scientists predict humans will run out of fossil fuels someday? 5.farmer spray crops with fertilizer and weed killer to the crops grow. how might this affect the hydrosphere? list two different ways you use fossil fuels. 1- 2- what are two other energy sources scientists and engineers are researching? 1- 2- lesson 5 vocabulary decompose- recycling - short answers 1. which of earth’s systems do you interact with when you wash your hands? 2. which of earth’s systems is polluted by exhaust gases from buses pollute? 3. why is it important to dispose of electronic devices properly? 4. where do people interact with all four of earth’s systems?