Question

1. If CD perpendicular AB, and CD bisects AB, prove that triangle ABC is an isosceles triangle.​

Answer 1

Answer:

In triangles ADC and BDC

<ADC = <BDC. (each 90 )

AD =BD. (given)

CD =CD. (common)

by SAS criterion of congruency

Triangles ADC and BDC are congruent

so , by CPCT. CA = CB

therefore , Triangle ABC is an isosceles

Answer 2

Answer:

need to know how to make a basic triangle

rest is in the picture