Maths revision

Question	Answer
Area of triangle Image: af2eadd9-4a5e-4452-bc27-05ad2afcdc51 (image/png)	Area triangle = $\frac{1}{2}$ x base x height
Area of a circle	$\pi\,r^2$
Angles in a triangle add up to	$180\,^{\circ}$
Circumference of a circle	$\pi\,d$
Radius = Circumference = Diameter = Image: 025011c8-8440-47fd-b7e4-7d9cc1e6833c (image/png)	Radius = 5cm Circumference = 31cm Diameter = 10cm
Area of a rectangle	Image: 4c93df30-795f-4c05-ba00-4b1b7c86be46 (image/png)
Area of kite	Image: 3e741fb2-b57a-4d70-9c06-5e639db6e9b7.gif (image/gif)
Area of a Parallelogram	Image: 32f4d91f-eb01-4e51-a0d7-49123c43f0c7.gif (image/gif)
Volume cylinder	Volume = Area of base (which is a circle) x height $V=\pi\,r^2\,h$ Image: 088e46dd-6d2e-4024-867b-dc70226c5169.gif (image/gif)
Volume of a Prism	Image: 12ccce60-a9b5-4fff-aa6d-c28742bf1a2d.gif (image/gif)
Measurements km, m, cm, mm	1000m in 1km 100cm in 1m 10mm in 1cm
Measurements ml, l, g, kg, tonnes	Millilitres and litres 1000ml in 1L Grams and Kilograms 1000g in 1kg 1000kg in 1 tonnes
Measurements (squared)	100mm $^2$ in 1cm $^2$ 10,000cm $^2$ in 1m $^2$ 1,000,000m $^2$ in 1km $^2$
Measurements (cubed)	1,000mm $^3$ in 1cm $^3$ 1,000,000cm $^3$ in 1m $^3$ 1,000,000,000m $^3$ in 1km $^3$
Conversions	1 mile = 1.6 km 1 inch = 2.5 cm 1 kg = 2.2 pounds
Area of a semi circle Image: 4d2ddd94-cfbd-4035-a05c-d05dd8559976.gif (image/gif)	Find the area of the circle then halve it. $\frac{\pi\,r^2}{2}$
Area of a quarter circle Image: 2bda0499-730d-4992-bad0-02ce9fd61ace (image/png)	Find the area of the circle then divide it by 4 $\frac{\pi\,r^2}{4}$
Angles on a straight line add up to Image: 49fc12f0-80a4-4cf7-aad5-63edd9fd8741 (image/png)	$180\,^{\circ}$
Angles in a quadrilateral add up to Image: da490592-cef5-4b70-9ee7-ee0486508d8e.gif (image/gif)	$360\,^{\circ}$
Angles around a point add up to Image: 16d18643-dd63-46b1-8bdd-ea09c07cdc40.gif (image/gif)	$360\,^{\circ}$
Alternate angles	Image: 0160a96e-b808-4342-877f-4e9a16d99563 (image/jpg)
Corresponding angles	Image: fa9bb716-b8da-4318-94ca-6e7024c958c0 (image/jpg)

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