P and Q are points on the sides AB and AC respectively of such that AP = 3.5 cm, AQ = 3 cm and QC = 6 cm. If PQ = 4.5 cm, then BC is ?.
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Answered by
4
AQ/AC=AP/AB=1/3
we have QP parallel CB
Triangle AQP congruent tria.ACB
AQ/AC=QP/CB
1/3=4.5/BC
BC=3×4.5
13.5cm
we have QP parallel CB
Triangle AQP congruent tria.ACB
AQ/AC=QP/CB
1/3=4.5/BC
BC=3×4.5
13.5cm
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Answered by
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In triangle, ABC P and Q are points on sides AB & AC
if PQ is parallel to BC,then
traiangle APQ is similar to triangle ABC
Therefore, AP/AB=AQ/AC=PQ/ BC
therefore, AQ/QC= 3/6=1/2
PQ/BC= 4.5/BC = 1/2
BC = 4.5×2/1
BC = 9 cm.
Hey mate I think this will help you and If this question is right than please mark it as brainlist.
if PQ is parallel to BC,then
traiangle APQ is similar to triangle ABC
Therefore, AP/AB=AQ/AC=PQ/ BC
therefore, AQ/QC= 3/6=1/2
PQ/BC= 4.5/BC = 1/2
BC = 4.5×2/1
BC = 9 cm.
Hey mate I think this will help you and If this question is right than please mark it as brainlist.
I don't know what you are saying
But my answer is correct
and her answer is wrong
im sorry but your answer is wrong and her answer is right
PQ/BC = AQ/AC as these two triangles are similar. so it will be 4.5/BC = 3/9......so BC = 4.5 * 9/3......that equal 13.5.........u have taken AQ/QC = 1/2.......but QC is not a side of the triangle,,,AC is..so instead of AQ/QC, you are supposed to take AQ/AC since AC is the side of the big triangle
Hope u can understand
ohhh
sorry I got my mistake
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