Question

The area of a triangle is 31.5 sq.cm. If the base is
18 cm, find its altitude.
please tell in detail​

Answer 1

ANSWER:-

3.5 cm

AREA OF TRIANGLE = 1/2×BASE×ALTITUDE

31.5= 1/2×18×ALTITUDE

31.5= 9×ALTITUDE

ALTITUDE= 31.5/9

ALTITUDE= 3.5cm

So, the altitude is 3.5 cm

HOPE IT HELPS.

PLEASE MARK AS BRAINLIEST.

Answer 2

Answer:

Area of a right triangle = A = 36 cm2

base = b = 9 cm ; height = h = ?

so, option (1) is the correct answer.