JW Geometry 8

Angles

100

List 3 types of angles e.g. acute (cannot use acute)

Revolution, Reflex, Obtuse, Straight, Right angle

200

If there is a straight line, and it is divided by a line. One of the angles is equal to 62 degrees. What is the value of the other angle?

180-62= 118 degrees

300

What is the interior angle sum for a pentagon?

540 degrees

400

What are some angles found in parallel lines intercepted by a transversal? List 4

Vertically Opposite, Corresponding, Co-interior, Alternate

500

What is it called when two angles add up to 360 degrees?

explementary

Triangles

100

What is the interior angle sum for a triangle

180 degrees

200

If two interior angles in a triangle are 78 and 65, what is the value of the third angle?

37 degrees

300

What are the size of the angles in a equilateral triangle?

60 degrees

400

If one of the base angles of a isosceles triangle is 45 degrees, what type of triangle is it?

Right angled isosceles triangle

500

How many types of triangle are there?

7 types

Polygons

100

Is a triangle a polygon? YES OR NO

Yes

200

What is the definition of a regular polygon?

A many sided closed shape. All sides and angles equal. A regular polygon is convex. 

300

What is the equation to find the interior angle sum of the interior angle sum of a polygon?

180(number of sides-2)

400

What is the difference between a regular and irregular polygon

Regular have equal sides and angles and convex, and irregular have unequal sides and angles.

500

What is the formula for the area of a trapezium

(a+b)*h/2

Congruency

100

How many tests are there for congruency in triangles

4 tests

200

What are the 4 tests for congruency in triangles

SSS AAS SAS RHS

300

How do you set out a Congruency explanation? How many lines are there?

5 Lines

Intro, First Part of test, Second part of test, Third Part of Test and Conclusion. 

400

How do you introduce a congruency test?

In Triangle ABC and XYZ

500

what do each of the lines in the congruency symbol mean?

First line = Equal Sides

Second Line  = Equal angles

Third Line = Equal Order

Other

100

What is the equation for a linear equation?

y=mx+c

With m being gradient and c being constant

200

What is the volume equation for a cylinder?

Volume = Pi * r² * Height

300

List 5 parts of a circle?

Sector, Segments, Tangent, Centre, Diameter, Radius, Chord, Arc are some examples

400

What is the equation for a sector?

A = Interior Angle/360 * Pi * r²

500

If the diameter of a cylinder is 8cm and the height is 23cm, what is the Volume? 2dp

V = Pi * 4² * 23

V = 1156.11 (2dp)