Question

in A ABC, AD is the bisector of BACFAR = in cm, D = 2.5 cm
and DC = 3.5 cm, then the length of AC will be:​

Answer 1

Step-by-step explanation:

as AD is bisector

it is perpendicular to BC

hence

triangle ADC forms a right angle triangle

so in this triangle by using

Pythagorean theorem

AC^2=AD^2+DC^2

AC^2=(2.5)^2+(3.5)^2

AC^2=6.25+13.25

AC^2=18.5

AC=sqrt 18.5

AC=4.03 cm

since the length of AC is 4.03 cm

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