s":null},{"id":"8bb20838-c102-4aa8-b0a5-ac0fdbc88bdf","cardType":"basic","front":"If a diagram states it is not accurately drawn, how should you determine side lengths?","back":"Use the written numbers only; do not use a ruler.","points":1},{"id":"e60775e4-2823-491d-b687-41bd3854103f","cardType":"basic","front":"What property defines perpendicular height in a triangle?","back":"It meets the base at a right angle (90°).","points":1},{"id":"048393d7-5ade-4517-b69f-5851fec9dd64","cardType":"cloze","front":"The formula for the area of a triangle is $A = \\text{[...]}$.","back":"The formula for the area of a triangle is $A = \\boxed{\\frac{1}{2} \\times b \\times h}$.","points":null},{"id":"ac5e7bb4-c6bc-4505-a69c-c3ae35f44ed5","cardType":"basic","front":"Why is the sloping side of a triangle usually excluded from area calculations?","back":"It is not the perpendicular height.","points":2},{"id":"4b8c7348-2dcd-4db1-8abe-0ce72d94d057","cardType":"basic","front":"What is a compound shape?","back":"A shape made from two or more simpler shapes (e.g. rectangles, triangles).","points":1},{"id":"cf4da250-fa4a-41fb-9aa7-3baeabd213cb","cardType":"basic","front":"What are the three general steps for finding the area of a joined compound shape?","back":"

Split the shape into simple parts.
Find the area of each part.
Add the areas together.

","points":3},{"id":"a33b2df0-b82b-4273-94a3-1557649d37c4","cardType":"basic","front":"How do you find a missing horizontal length in a rectilinear shape?","back":"Compare the total top distance to the total bottom distance.","points":2},{"id":"220df815-e7bb-43f1-9929-d9ef72fbc6e9","cardType":"basic","front":"In a rectilinear shape, how do vertical distances relate to one another?","back":"The total distance up must match the total distance down.","points":2},{"id":"6ef39e18-dad7-4793-acdb-be53c5a200b6","cardType":"basic","front":"What is the common mistake when calculating the area of L-shaped rectilinear shapes?","back":"Multiplying all the numbers shown instead of selecting specific lengths for sub-rectangles.","points":1},{"id":"664ebd69-2254-4dd0-a693-9d46325e0d99","cardType":"basic","front":"How do you calculate the shaded area if a shape has a hole inside it?","back":"Find the large area and subtract the area of the hole.","points":2},{"id":"d984cdc5-e830-4a7f-87a8-1c60f23a7669","cardType":"cloze","front":"To find a shaded region with a section removed, use the formula: $A_{\\text{shaded}} = \\text{[...]}$.","back":"To find a shaded region with a section removed, use the formula: $A_{\\text{shaded}} = \\boxed{A_{\\text{large}} - A_{\\text{removed}}}$.","points":null},{"id":"d8579637-8e7c-43f5-9eef-44fac274681a","cardType":"cloze","front":"A rectilinear shape is made from horizontal and vertical sides, meaning all corners are [ ].","back":"A rectilinear shape is made from horizontal and vertical sides, meaning all corners are right angles (90°).","points":null},{"id":"c6352c0b-3862-49bc-af52-5cfa7c3b0fbf","cardType":"basic","front":"A right-angled trapezium can be split into which two simpler shapes?","back":"A rectangle and a right-angled triangle.","points":1},{"id":"edaf8a30-1e9e-4636-a38d-6c622582d458","cardType":"cloze","front":"A trapezium is a 4-sided shape with [ ] pair of parallel sides.","back":"A trapezium is a 4-sided shape with one pair of parallel sides.","points":null},{"id":"73e7ba0d-aaf7-4376-811

Area of Compound Shapes Flashcards

Area of Compound Shapes Flashcards

Area of Compound Shapes Flashcards

Area of Compound Shapes Flashcards