exam Maths Puzzle Numerical Ability

in triangle ABC given that angle B=45 degrees, angle C=30 degrees, side a=10, find angle A and sides b and c?

can anyone show me step by step instruction thanks

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exam Other Question

write an equation of a circle with center at the origen and radius 6. Suppose you are standing 200 feel away from a tree and you see a kite hovering above that tree. The angle of elevation from you to the kite is 36 degrees (angle). To the nearest foot, what is the height of the kite?