Math topic中文
Volume surface area solids
volume and surface area of cube, cuboid, prism, cylinder, pyramid, cone and sphere
Practice questions
- 1A cuboid has a volume of 250 cm^3, correct to the nearest cubic centimetre. The height of the cuboid is 8.4 cm, correct…
- 2Isaiah cuts open a cardboard cube along some of its edges to form the flat shape shown on the right, which has an area o…
- 3Alex and Felicia each have cats as pets. Alex buys cat food in cylindrical cans that are in diameter and …
- 4把一个长方体正好分割成两个完全相同正方体,若分割后的正方体的棱长为4cm,则分割后比分割前表面积增加了 ,总体积增加了 .
- 5The figure below is made up of 1-cm cubes. What is the volume of the figure? Ans : ___
- 6已知圆锥的底面半径为5cm,母线长为9cm,则它的侧面积为 .
- 7The diagram below shows a gift souvenir formed by joining the plane face of a solid hemisphere of radius 3 cm and a soli…
- 8Calculate the total surface area of a solid hemisphere with radius 6 cm. Answer ... cm^2
- 9In the cube with opposite vertices and , and are the midpoints of edges and …
- 10学校要粉刷一间教室的四壁和屋顶,除去门窗和黑板的面积24平方米,己知教室长8米,宽6米,高4米,要粉刷的面积是多少平方米?
- 11The figure shows a solid frustum of height 16 cm cut from a right pyramid with square base. The horizontal top surface h…
- 12一种汽车每千米需用油0.1升,它的油箱是长50厘米,宽40厘米,高30厘米的长方体,将它的油箱加满油可行多少千米?
- 13亮亮家的客厅长,宽,高,门窗总面积,现在要把客厅的四壁和顶面粉刷环保油漆,刷油漆的面积是多少平方米?
- 14An industrial mixer is made up of an open cylinder connected to a cone. The height of the cylinder and the cone is 1.2 m…
- 15一个长方体小水箱,长10分米,宽8分米,高5分米. (1)做这个水箱至少需要多少平方分米的铁皮? (2)如果1立方分米的水重1千克,那么这个水箱能装多少千克的水?
- 16水池,,都是长方体,深为,底部尺寸为号阀门可将无水池注满;号阀门用来从池向池放水,可将…
- 17一个长方体的木箱,长1.2m,宽0.8m,高0.6m.做这个木箱至少要用多少平方米木板?
- 18Fang Min glued eight 1-cm cubes to form the solid below. She painted the whole solid, including the base. What was the t…
- 19The diagram shows a right circular cone cut from a solid steel sphere. Point O is the centre of the sphere with radius 1…
- 20The figure above shows a solid. The cross-section of the solid is a sector of a circle of radius 5 cm and angle 30°. The…
- 21A composite solid is made from a cylinder and two hemispheres. The cylinder has radius and length , while the he…
- 22一个正方体容器的棱长是4厘米,装满水后倒入另一个深6厘米的圆锥形容器中,刚好倒满,这个圆锥形容器的底面积是 .
- 23Figure I shows a piece of wood is in the form of a right circular cone with a base diameter of 18 cm. The curved surface…
- 24把一块不规则的石块放入一个棱长为10厘米的正方体容器里,水面上升了6厘米,求石块的体积.
- 25用硬纸做一个长为10厘米,宽为8厘米,高为4厘米的长方体模型,至少需要多少硬纸?
- 26Jill glued 12 cubes of side 1 cm to form a solid as shown below. (Top view, Side view and Front view are indicated on th…
- 27The diagram shows a pyramid with a rectangular base and its height is 9 cm. The volume of the liquid in the pyramid is …
- 28在一个长40厘米、宽25厘米的长方体水槽中浸没一个长方体金属块,这时水槽中水面的高度是20厘米,把金属块取出后,水面高度降低到16厘米.已知金属块长25厘米,宽16厘米,高是多少厘米?
- 29The diagram shows two open containers, a right cylinder and an inverted frustum. The right cylinder has a base radius of…
- 30The diagram shows a cardboard in the shape of a major sector, centre O and radius 15 cm. The total area of the major sec…
- 31一个长方形铁皮长30cm,宽25cm,从四个角各切掉一个长为5cm的正方形,然后做成一个无盖的盒子,这个盒子用了多少铁皮?它的容积是多少?
- 32用铁丝做一个长6分米、宽5分米、高2分米的长方体框架,至少需要铁丝 分米;把6个面都糊上彩纸,至少需要彩纸 平方分米.
- 33A book writer intends to sell her books to either Australia or Brazil, and she is planning to use Singapore post office…
- 34The diagram shows a solid formed from a cone, a cylinder and a hemisphere. The cone has base radius cm and height…
- 35两个正方体的棱长比是3:5,这两个正方体的体积比是( )。 A. 27:125 B. 9:25 C. 3:5 D. 无法计算
- 36一个棱长总和是80cm的长方体,刚好可以分成3个相同的小正方体,原来长方体的体积是多少立方厘米?
- 37The diagram shows a cylindrical container used to dispense coffee in a hotel. Calculate the volume of the cylinder. Answ…
- 38A hot water tank is made by joining a hemisphere of radius 30 cm to a cylinder of radius 30 cm and height 70 cm. Calcula…
- 39Gillian wants to make cylindrical soy wax candles as farewell gifts for 50 classmates and friends in school. The diagram…
- 40用若干个同样的小正方体拼成一个较大的正方体,至少需要个. A. B. C.
- 41The diagram shows a semicircle, centre O, radius 16 cm. Show that angle AOB = 1.287 radians, correct to 3 decimal places…
- 42一个正方形的棱长总和与一个长方形的棱长总和相等,则它们的体积相等. . (判断对错)
- 43 …
- 44A cubical container and Tank Y are shown below. (a) Find the volume of water in the cubical container. (b) Tank Y was fi…
- 45一个棱长的正方体切成两个完全一样的长方体,一个长方体的体积是 ___ ,表面积是 ___ .
- 46O is the centre of the equilateral triangle. The triangle ABC forms the base of a pyramid. The vertex, X is vertically a…
- 47用棱长1cm的小正方体搭一搭. (1)搭一个稍大一些的正方体,至少需要多少个小正方体? (2)用12个小正方体搭一个长方体,可以有几种不同的搭法?记录搭出的长方体的长、宽、高. (3)搭一个四个面都是正方形的长方体,你发现了什么?
- 48A cone has a radius of and a total surface area of . Show that the volume of the c…
- 49一根长的长方体木料,锯成两段,表面积增加了,原来这根木料的体积是 ___。
- 50解答下列应用题: (1)某房间的面积为,房间地面恰好由块相同的正方形地砖铺成,每块地砖的边长是多少? (2)已知第一个正方体水箱的棱长是,第二个正方体水箱的体积比第一个水箱的体积的…
- 51由个棱长是分米的正方体拼接成的长方体的表面积是平方分米 A. B. C. D.
- 52一个长方体铁皮水桶高5厘米,它的底面积是8平方分米,这个水桶的容积是 升.
- 53The diagram shows a lecture theatre in the shape of a prism with height 9 metres. The floor of the lecture theatre, ABCD…
- 54The diagram shows the cross section of a plastic pipe. The arc AB is part of the circle with centre O and radius 45 mm.…
- 55挖一个长40米,宽25米,深2米的游泳池. (1)要挖出多少立方米的土? (2)沿着游泳池的周围走一圈,至少要走多少米? (3)如果在游泳池的四壁和底面贴边长2分米的正方形瓷砖,需要多少块?
- 56若圆锥的底面半径为,母线长为,则这个圆锥的全面积为 ___ 结果保留
- 57一个正方体的棱长总和是72厘米,它的一个面是边长___厘米的正方形,它的表面积是___平方厘米,体积是___.
- 58用一根长厘米的铁丝,剪断后焊接成一个正方体框架。如果用白纸贴满这个正方体的各个面,至少要用白纸 ___平方厘米,这个正方体的体积是 ___立方厘米。
- 59一个长36分米的铁丝能围成一个正方体框架,如果在这个正方体框架外面糊一层纸,需要 平方分米的纸,这个正方体的体积是 立方分米.
- 60A closed conical ornament has a circular base of radius 10 cm and height 25 cm, and contains mercury to a depth of 15 cm…