Question

the area of a triangle is 92 cm square if its base is 15 cm find its altitude

Answer 1

Hi there !!

We know,

Area of triangle

$\frac{1}{2} \times base \: \times height$
Base = 15cm
Area = 92cm²
Let the altitude be 'h'

$92 = \frac{1}{2} \times 15 \times h$
transposing 2 and 15 in LHS,
we have,

$\frac{92 \times 2}{15} = h$
h = 12.266666.. = 12.267 or 12.27cm


So,
the altitude is 12.27cm or 12.66cm

Answer 2

1/2bh=92
1/2(15)(h)=92
15h/2=92
15h=92×2
15h=184
h=184/15
h=12.2666cm