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12-11-2022
Mathematics

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the diagram below, not drawn to scale, shows right angled triangles EDC and ABC. Angle ABC = 30°, BD = 20° cm, AC = 9cm and DE = 8cm.

Calculate, giving your answer correct to 1 dp.

The length of BC, in cm.

The size of angle EDC in degrees.

the diagram below not drawn to scale shows right angled triangles EDC and ABC Angle ABC 30 BD 20 cm AC 9cm and DE 8cm Calculate giving your answer correct to 1 class=

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