Question

Calculate the value of a in the triangle below.
15 cm
12 cm
a cm

Answer 1

a = 9 cm

Explanation:

• Calculate the value of a in the triangle below.

• 15 cm

• 12 cm

• a cm

• it is a right triangle and we use the Pythagorean theorem

a = √(15²-12²)

a = √(225 - 144)

a = √81

a = 9 cm