Question

please slove question no. 10( related to the solution of right triangle) ( trigonometry)

find the length of AB
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Answer 1

Step-by-step explanation:

We have ,

tan 45= AE/ED

→1= AE/ED

→AE = ED .......(1)

And , tan 60= EB/ED

→√3= EB/ED

→√3ED = EB.....(2)

We have , ED = BC = 30cm (opposite sides of rectangle )

Now , adding (1) and (2)

AB =(1+√3)ED= 30(√3+1)cm

Answer 2

30√3+1.......................