Question

ABC is a right angle triangle with angle ACB is equal to 90 degree BC equal to 12 CM AB equal to 15 cm and CD equal to 5 cm find the lengths of BD and AD​

Answer 1

Answer:

Step-by-step explanation:

First find AB

using pythagoras theorem. As per your question

AB2=AC2+BC2

AB2=162+122

AB2=256+144

AB2=400

AB=20

Now find the area of triangle ABC,

base×height2

12×162

Area=96

unit2

Now as CD is perpendicular to AB, take AB as base and CB as height. The area is known so height can be found.

AB×CD2=96

20×CD2=96

CD=96×220

CD=9.6

HOPE IT WAS HELPFUL