express 0.541 in p/a form
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Answer:
i) 55°
Step-by-step explanation:
i) it is given that AB = AC
=) angle ABD= angle ACD
=) 35° = angle ACD
By angle sum property:
angle BAC+ angle ABD+ angle ACD= 180°
angle BAC+35°+35°=180°
angle BAC+70°=180°
angle BAC=180°-70°
angle BAC=110°
angle BAD= 1/2 angle BAC
angle BAD= 1/2 110°
angle BAD= 55°
ii)
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