Question

18. In triangle ABC, AD and BE are altitudes. If BC = 8,
AC = 12 and AD = 6, find ar (ABC) and BE,​

Answer 1

Answer:

area of ∆ABC = 24 sq. units

BE= 4 units

Step-by-step explanation:

Area of ∆ABC=

$\frac{1}{2} \times 6 \times 8 = 24sq. \: units$

Area of ∆ABC=

$\frac{1}{2} \times be \times 12 = 24 \\ = > \: be = 4 \: units$

Answer 2

A(ABC)=1/2×basexhight

=1/2xBcxAD

=1/2 × 8 ×6

=24

A(ABC)=1/2×base×height

24 =1/2 × AC ×BE

24 =1/2×12×BE

24×2/12=BE

2×2=BC

4= BC