Question

Mathematics

Prove proposition 4.6: Given triangle ABC and triangle A'B'C', if we have AB is congruent to A'B' and BC is congruent to B'C', then angle B < angle B' if and only if AC

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In triangle ABC, AC is 7cm, m<A is 60° and m<B = 50°,can you draw the triangle? 

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a tower stands vertically on the ground from a point on the ground which is 30m away from the foot of the tower the angle of elevation of the top of the tower is 45 then find the height of tower

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