Question

Calculate x
Please answer ​

Answer 1

This triangle has two sides having 15 CM and a height common to two divided triangle is 12 CM

Consider Triangle A Has a right angled triangle

By using Pythagoras theorem

15^2=x+12^2

225=x^2+144

x=√225-144

x=√81

x=9 CM

Both the unknown sides have common base and equal side

Then this two right angled triangle has SSS congruent Rule

Therefore, x=2X9

X=18 cm