Question

how do i prove a triangle is isosceles

Answer 1

two sides are the same size and one is different

Answer 2

Either by showing that two sides have the same length, or by showing that two angles are the same.

Answer 3

how do i show it though

Answer 4

That depends on the triangle and the information you are given.

Answer 5

if u hav the triangle, mark that two sides or angles
are congruent with tick marks

Answer 6

P (1,-1) Q(7,1) R(3,3)

Answer 7

distance formula i think
are u given the figure on a coordinate plane?

Answer 8

nope

Answer 9

then u cant count the boxes so try the distance formula

Answer 10

use the distance formula on PR and QR

Answer 11

i did thanks