There are two types of special triangles: 45

A 45

Side 1: side 2 : hypotenuse = a : a: a√2

Find x.

This is a right triangle with two equal sides so it must be a 45

So we use, a : a: a√2

Here a = 6

Hypotenuse = a√2 = 6√2.

_________________________________________________________________

Isosceles right triangle means 45

So we use, a : a: a√2

Here hypotenuse = a√2 = 10√2

Side = a = 10

_________________________________________________________________

Isosceles right triangle means 45

So we use, a : a: a√2

Here hypotenuse = a√2 = 18

Side = a = 18/√2

a= (18x√2)/(√2x√2) (Rationalize the denominator)

a = 18√2/2

a = 9√2

Each side = 9√2

Special Right Triangles

30-60-90 Triangles

Pythagorean Theorem

GMAT

GRE

1st Grade

2nd Grade

3rd Grade

4th Grade

5th Grade

6th Grade

7th grade math

8th grade math

9th grade math

10th grade math

11th grade math

12th grade math

Precalculus

Worksheets

Chapter wise Test

MCQ's

Math Dictionary

Graph Dictionary

Multiplicative tables

Math Teasers

NTSE

Chinese Numbers

CBSE Sample Papers