Question

I ∆ Abc ,ml b = 90°, Ab= 20° and bc= 21cm . find the length of Ac​

Answer 1

Answer:

29 cm

Step-by-step explanation:

using Pythagoras theorem, (ab) ²+(bc)²=(ac)²

so, 20²+21²=ac ²

400+441=ac ²

ac²=841

so, ac=root 841

ac=29 cm.

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