Calculate 2673

In triangle ABC, the height on the c side is 12 cm. Calculate the area of this triangle if a = 15 cm and b = 13 cm.

Final Answer:

S =  84 cm2

Step-by-step explanation:

h=12 cm a=15 cm b=13 cm  c1=a2h2=152122=9 cm c2=b2h2=132122=5 cm  c=c1+c2=9+5=14 cm  S=2c h=214 12=84 cm2

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