Question

3. ABC is a triangle in which AB = AC = 4 cm
and ∆A = 90°. Calculate :
(i) the area of ∆ ABC,
(ii) the length of perpendicular from A to BC.​

Answer 1

Answer:

$area \: of \: right \: triangle = \frac{1}{2}\times \:b \times \:h$

$\frac{1}{2} \times 4 \times 4 \\ 8cm ^{2}$

$ii)4cm$