The length of the hypotenuse is p−a−b=32−694=594. From the formula A=rs, where A is the area of a triangle,r is its inradius, and s is the semiperimeter, we can find that r=2032/2=54. It is known that in a right triangle, r=s−h, where h is the hypotenuse, ...
A good understanding of how to calculate the perimeter of a shape is needed before children can begin to learn more complex geometric ideas such as area and volume. Wondering about how to explain other key maths vocabulary to your children? Check out our Primary Maths Dictionary, or try thes...
Units of area: In the CGS system, the unit of area is \({\rm{c}}{{\rm{m}}^2}\) and in the SI system, the unit of area is \({{\rm{m}}^{\rm{2}}}\). The perimeterof a shape is defined as the total length around the shape. It is the length of a shape if it is...
The perimeter of a closed figure is given by the sum of all its sides. We know that rhombus is a type of quadrilateral that has all its sides equal. Therefore, the perimeter of a rhombus will be the total measure of its boundary. So, how do we find the perimeter of a rhombus? Let...
The perimeter of a square is 36 meters. What is its area? A. 81 square meters B. 72 square meters C. 64 square meters D. 56 square meters 相关知识点: 试题来源: 解析 A。周长 36 米,边长 9 米,面积 = 9×9 = 81 平方米。
Plane spotting is an interest in aeroplanes which is backed up by actively going out to identify, log, or photograph aircraft. I have been a plane spotter since a young age. My father used to take me to the local airport where there was a viewing area on top of the terminal, and we...
A shape is defined as a figure enclosed by a boundary. We see uncountable objects around us in shapes such as square, rectangle, circle etc. Now, what is this area of shape? Let’s dive deeper into the concept.The area of shape is the space enclosed within the perimeter or the ...
A square swimming pool has an area of 64 square meters. What is the perimeter of the pool? A. 16 meters B. 32 meters C. 24 meters D. 8 meters 相关知识点: 试题来源: 解析 B。解析:正方形面积为 64 平方米,边长为 8 米,正方形周长等于 4 倍边长,4×8 = 32 米。A 选项 16 米不...
They will have to relate their understanding of perimeter, area and volume to 3D shapes. 3D shapes questions 1. How many vertices on a cube? (Answer: 8) 2. How many squares make up the net of a cube? (Answer: 6) 3. Complete the table. (Answer: Triangular based pyramid, 4 faces,...
If a square has a perimeter of 28 meters, what is the area? A. 49 square meters B. 56 square meters C. 64 square meters D. 81 square meters 相关知识点: 试题来源: 解析 A。周长为 28 米,边长为 7 米,面积为 49 平方米。反馈 收藏 ...