Question

10.In the triangle ABC <B=90˚, AB=12cm, BC=5cm.What is the circumradius of triangle ABC​

Answer 1

Answer:

Using Pythagoras theorem,

In right angled triangle ABC,

AC squ. = AB squ. + BC squ.

AC squ. = (5) squ. +( 12) saq.

AC squ. = 25+144=169

AC =13

And we know that, circumcenter of right angled triangle is at the mid point of the hypotenuse.

so 1/2Ac= 6.5

Answer 2

Answer:

hypotenuse÷2=circumradius

Step-by-step explanation:

centre of circumcircle is on the hypotenuse