Question

8.
In a triangle the height is double the base and the area is 400 cm². Find the
length of the
base and height​

Answer 1

Step-by-step explanation:

Area of a triangle=

2

1

×base×height

Let, base=x cm, then height=2x cm

So, 400cm

2

=1/2×(x)×(2x)

⟹x

2

=

2

400×2

=400cm

⟹x=20cm

So,

base=20cm;height=40cm