Question

find the area of triangle ABC where BC=5cm, CA=7cm, angle BCA= 90°

Answer 1

if you want to know ,how I derive the following steps,refer the image given
angle BCA=90°

BC is the height=5cm
CA is the base=7cm
area of triangle=1/2×base×height.
=1/2×7×5 cm
=17.5 cm square

area of triangle ABC is 17.5 cm square

Answer 2

Answer:

if you want to know ,how I derive the following steps,refer the image given

angle BCA=90°

BC is the height=5cm

CA is the base=7cm

area of triangle=1/2×base×height.

=1/2×7×5 cm

=17.5 cm square

area of triangle ABC is 17.5 cm square

Step-by-step explanation: