Attention class 10th cbse...a vaery imp ques. for boards 2020.
PLS SOLVE QUESTION NO. 32.
I WILL MARK THE CORRECT ANSWER.
❤❤
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Attention class 10th cbse...a vaery imp ques. for boards 2020.
PLS SOLVE QUESTION NO. 32.
I WILL MARK THE CORRECT ANSWER.
❤❤
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Answer:
Step-by-step explanation:
construction to be done
join c to d a point on ab
40/2 = 20cm
angle cab = 45
we have to find cd
tan 45 = cd / 20
1 = cd/20
cd = 20 cm
ac = ?
sin 45 = cd/ac
1/root2 = 20/ac
ac = 20 root 2 cm
bc = ?
sin 30 = cd/bc
1/2 = 20/bc
bc = 40 cm
Step-by-step explanation:
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