Question

In a right angled triangle is 90 degree at B, AC = 20cm and AB = 10cm .Find angle C.​

Answer 1

Step-by-step explanation:

Draw a right angled △ABC using given instructions:

Here sin30=ACBC

21=20BC

Or BC=10 cm

By Pythagoras theorem:

(AB)2=(AB)2−(BC)2

=(20)2−(10)2

=300

AB=103cm.





Answer 2

Answer:

BY PYTHAGORAS THEOREM

H^2=P^2+B^2

20^2=C^2+10^2

400=C^2+100

C^2=400-100

C^2=300

C=10✓3

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