in abc ab 3 BC 4 AC 5 if p q r are midpoints of sides ab bc and ac find the area of triangle pqr with daigram
Answers
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
Between the triangle ARP and CRQ applying mid point theorem
RP ∥ BC and
RP =
2
1
BC = CQ.
And AR = RC ( R is the mid point of AC )
again PR ∥ BC and AC is the transversal.
Therefore angle ARP = angle RCQ.
Therefore the triangles are congruent by SAS test.
Area ΔARP=AreaΔ RCQ.
By applying the same midpoint theorem we can prove that each of the four triangles have the same area.
So, they divide the triangle into four equal areas.
Now total area = 20 sq. cm.
Therefore area of the Δ PQR is 20 sq.cm divided by 4 = 5 sq.cm