Question

find the area of the triangle whose base is 20 cm and height is 10cm

Answer 1

Area=1/2 base×height
1/2×20×10
10×10=100cm

Answer 2

solution

given that      b=20cm   h=10cm

using  A=1/2(l×b)

 ⇒A=1/2(10*20)

 ⇒A=200/2

 ⇒A=100cm²