Question

Find the area of an obtuse angle triangle ABC as shown in the figure.

• A. $28{\text{unit}}^2$
• B. $28\text{unit}$
• C. $35{\text{unit}}^2$
• D. $56{\text{unit}}^2$

Answer 1

The correct option is A $28{\text{unit}}^2$

Given,
Base of a triangle$=BC=8$ unit
Height of a triangle$=AD=7$ unit
As we know,
$\text{Area of}△ABC=\frac{1}{2}\times \text{Base}\times \text{Height}$

$=\frac{1}{2}\times 8\times 7$

$=28{\text{unit}}^2$

Option (b) is correct.