Question

Area = 20cm² hight =10cm then base = ?

Answer 1

1/2×base×height=area of triangle
1/2×b×10=20
b×5=20
b=20/5
b=4
Base=4 cm

Answer 2

are of triangle=1/2*base*height
20=1/2*base*10.
20=5*base. (half of 10 is 5)
20/5=base
4=base


so the base is 4cm