Question

in a triangle ABC if the median ad is perpendicular to base BC then prove that the triangle is an isosceles triangle​

Answer 1

Answer:

Step-by-step explanation:

Hey...dude

Given: triangle ABC

Required to prove: ABC is isosceles, i.e. AB=AC

Proof: Using number 2) Median AD perpendicular to BC

In triangle ADB and triangle ADC

AD=AD ( given )

Angle ADB=Angle ADC ( as AD is perpendicular to BC )

BD=DC ( as D divides BC into two equal halves )

Therefore,

Triangle ADB congruent to Triangle ADC

=> AB=AC ( CPCT )

Therefore Triangle ABC is isosceles.

Hence proved.

Hope it's help Mark Me as brainlist Plz

Answer 2

a simple proof... apply pythagorus theorwm