Q. In the fig., AB=AC and DB=DC,
find the ratio of angle ABD:
angle ACD
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AB=AC
DB=DC
AD is the midpoint of both AB and AC
So, <ABD=<ACD
From the triangle ABD, clearly
<D=90°
So the other angles:
<A = 45°
<B = 45°
Similarly, in triangle ADC, <D = 90°, <A = 45° , <C = 45°
ABD : ACD
= 45:45:90 : 45:45:90
= 1:1:2 : 1:1:2
= 1 : 1
DB=DC
AD is the midpoint of both AB and AC
So, <ABD=<ACD
From the triangle ABD, clearly
<D=90°
So the other angles:
<A = 45°
<B = 45°
Similarly, in triangle ADC, <D = 90°, <A = 45° , <C = 45°
ABD : ACD
= 45:45:90 : 45:45:90
= 1:1:2 : 1:1:2
= 1 : 1
Ramlayaksingh3:
yes thanks very much
it's 100% correct
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