ac = 7 c.m angle abc = angle bca = 45 angle find area
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in triangle ABC,
Angle BAC=180-(45+45)=90°
angle ABC=angle BCA
.•. AB=AC(side opposite to equal angles are equal)
.•. AC=7cm
area=1/2*base*height=1/2*7*7=49/2=24.5cm square
Angle BAC=180-(45+45)=90°
angle ABC=angle BCA
.•. AB=AC(side opposite to equal angles are equal)
.•. AC=7cm
area=1/2*base*height=1/2*7*7=49/2=24.5cm square
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