Question

find the area of triangle with base 8 cm and whose height is equal to that of the rectangle with base 6 cm and area 30 cm square

Answer 1

area of rectangle = 6× x= 30
so x=5
area of triangle = 1/2×8×5
=20

Answer 2

Area of rectangle =l×b

30=6×b

b=30/6

b=5..is the height of triangle..

now..

area of triangle=
$\frac{1}{2} \times base \times height$
=1/2× 8 × 5

area of triangle =4×5

area of triangle =20cm^2

hope it helps you..
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