Question

A(4,5), B(9,5), C(4,10) are the vertices of a triangle
(a) Find the length of side AB?
(b) Prove that this triangle is Iscoceless.
(0) Write the coordinates of its circum centre. What is the circum radius?​

Answer 1

Answer:

for finding length of AB use distance formula

Step-by-step explanation:

route of x2 - x1 whole square + y2-y1 whole square

(9-4)² +(5-5)²

(5)²

25

forbproving triangle is a isosceles

any two sides shold be equal

distance BC

by above formula

(4-9)² +(10-5)²

(5)²+(5)²

25 + 25

50

now ,by above formula

CA length should get

(4-4)² +(5-10)²

+(-5)²

25

so distance of AB and CA are equal so it is isosceles triangle