Triangles

Question 1

What does triangle mean?

Answer 1

Three triangles

Question 2

How many degrees does a triangle add up to?

Answer 2

180

Question 3

What is opposite the longest and shortest side of a triangle?

Answer 3

The largest and shortest angle.

Question 4

If two sides of a triangle are equal then….

Answer 4

Then the angles opposite the sides are equal.

Question 5

Types of triangle

Answer 5

Right Angled
Acute Angled
Obtuse Angled
Scalene 
Isosceles
Equilateral

Question 6

Right Angle Triangle

Answer 6

One angle is equal to 90 degrees.

Question 7

Acute Triangle

Answer 7

All angles are acute

Question 8

Obtuse Angled

Answer 8

One angle is obtuse

Question 9

Scalene Triangle

Answer 9

All sides are of different lengths

Question 10

Isosceles Triangle

Answer 10

Two sides are equal

Question 11

Equilateral Triangle

Answer 11

All sides are Equal

Question 12

What is the name of the longest side of a triangle?

Answer 12

Hypotenuse

Question 13

That is pythagorus theorem?

Answer 13

The hypotenuse is equal to the sum of the remaining sides. So H= a+b.
This the sum of a right angled triangle.

Question 14

How to find the area of the largest square of a right angle triangle.

Answer 14

It is equal to the sum of the other two squares.

Question 15

How to find the missing side of a right angle?

Answer 15

Write down hypotenuse theorem (a2=b2+c2) and then use algebra to solve it.

Question 16

How yo find the mid point of a and b

Answer 16

If a is (2,1) and b is (4,5)
Find the average point of the x coordinate of a and b and then find the average point of the y coordinate of a and b.

So 2+4 divide by 2 then 1+5 divide by 2 = 3 for x and 3 for y.

Question 17

What are congruent triangles?

Answer 17

Two triangles that are the same shape and size.

Question 18

What is congruence criteria?

Answer 18

When two triangles are congruent if one or more of the following four criteria applies:

(SSS)
(SAS)
(AAS)
(RHS)

Question 19

(SSS)

Answer 19

Side Side Side

Question 20

SAS

Answer 20

Side Angle Side

Question 21

AAS

Answer 21

Angle Angle Side

Question 22

RHS

Answer 22

Right angle Hypotenuse Side

Question 23

What are similar triangles

Answer 23

When they are the same shape but not the same size.

Question 24

Find the length of a,b (hypotenuse) using co ordinates

Answer 24

Subtract the x coordinates and then sub tract the y coordinates

Then add the answer

Then find the square root of the answer

(If one coordinate is a negative number then add the coordinates together.