is measured in square units, such as cm², m² or mm².","points":null},{"id":"13c0c858-f3d7-40dc-8b66-f8c3adcd5e33","cardType":"basic","front":"What is the area formula for a rectangle with base $b$ and height $h$?","back":"$A=bh$","points":1},{"id":"8dff76dd-5c12-4b04-b1d3-ddb61dd1964c","cardType":"basic","front":"What is the area formula for a triangle with base $b$ and height $h$?","back":"$A=\\frac{1}{2}bh$","points":1},{"id":"e67aad80-ebdf-4003-8df5-205118157c73","cardType":"basic","front":"What is the area formula for a trapezium with parallel sides $a$, $b$ and height $h$?","back":"$A=\\frac{1}{2}(a+b)h$","points":1},{"id":"a277dc68-03cd-4ce1-b735-c01f1faee42b","cardType":"cloze","front":"For triangles and trapezia, the height must be [ ] to the [ ].","back":"For triangles and trapezia, the height must be perpendicular to the base.","points":null},{"id":"2ea0bb6d-1125-4076-b381-e4225cf52433","cardType":"basic","front":"When can a sloping side be used as the height of a triangle or trapezium?","back":"Only if it is perpendicular to the base.","points":2},{"id":"e953ad51-d69e-42ff-8c9d-ffd8bc534d3d","cardType":"cloze","front":"Parallel lines stay [ ] and [ ].","back":"Parallel lines stay the same distance apart and never meet.","points":null},{"id":"50a7fd04-2c71-420d-9370-e59f1b562610","cardType":"basic","front":"If a diagram is labelled not accurately drawn, what should you use to find lengths?","back":"Use the labelled lengths only.","points":1},{"id":"c313b960-ef3b-4838-944c-c4ddea33b079","cardType":"basic","front":"For a compound shape made of joined pieces, what is the area strategy?","back":"

Split into simpler shapes.
Find each area separately.
Add the areas.

","points":3},{"id":"273de04e-9ddd-401d-82e1-fb05b58c626f","cardType":"cloze","front":"For right-angled compound shapes, splitting along a [ ] or [ ] line usually creates rectangles.","back":"For right-angled compound shapes, splitting along a horizontal or vertical line usually creates rectangles.","points":null},{"id":"48f944f8-767a-4009-897d-e2e040cccaa2","cardType":"basic","front":"Why should you not multiply total width by total height for an L-shape?","back":"It includes space not in the shape.","points":2},{"id":"f46f5fe5-0dae-4f51-a383-1765644e44b4","cardType":"basic","front":"In the L-shape example, the bottom length is 13 cm and the top length is 6 cm. What is the missing right width?","back":"$13-6=7$ cm","points":1},{"id":"4e005f1b-6e78-49a7-b6ae-20c88fb199b9","cardType":"basic","front":"An L-shape is split into rectangles $6\\text{ cm}\\times8\\text{ cm}$ and $7\\text{ cm}\\times5\\text{ cm}$. What is its total area?","back":"83 cm²","points":2},{"id":"b855b6a4-3434-41bf-9c15-3fb7d06c4467","cardType":"basic","front":"In a right-angled triangle, which two sides are the base and height?","back":"The two sides that meet at the right angle.","points":1},{"id":"6234f3c8-dd25-4967-ac11-654a222f43d2","cardType":"basic","front":"A compound shape has a $3\\text{ cm}\\times10\\text{ cm}$ rectangle and a triangle with base 6 cm and height 4 cm. What is the total area?","back":"42 cm²","points":2},{"id":"080101f2-aff7-434f-9b8d-9f21e10ad747","cardType":"basic","front":"For a shaded region with a hole, what area calculation is used?","back":"Whole area - unshaded area","points":1},{"id":"63e7193a-a0f7-4c33-9dac-9a9379a17033","cardType":"cloze","front":"If there are several identical holes, subtract [ ] of them, n

Area of Compound Shapes Flashcards

Area of Compound Shapes Flashcards

Area of Compound Shapes Flashcards

Area of Compound Shapes Flashcards