Area of triangle PQR is 100 cm2. If altitude QT is 10 cm, then find the base PR .
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Answer:
Length of the Base PR is 20 cm.
Step-by-step explanation:
Area(A) of triangle ∆ PQR = 100cm2
QT - Altitude / Height ( h) = 10cm
PR - Base (b) = ?
Area of ∆ = 1/2 x b x h
100 = 1/2 x b x 10
Therefore Base (b) = 100/10 x 2
= 20 cm
So, the length of the Base ( b) PR is 20 cm.
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