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Geometry Ch 10
Stepp's Prentice Hall Geometry Chapter 10 Area (slides so play targets)
| question | answer |
|---|---|
| Pi times d and 2 (pi) r are both equal to ___ | circumference |
| Arc measure is measured from the ___ ___ | central angle |
| Another name for a half-circle is ___ | semicircle |
| To convert a Percent into a piece of a pie chart ____ | turn the % into a decimal and multiply by 360 |
| True or False: arc measure and arc length are the same thing ____ | False |
| True or False: only major arcs are named with 3 letters ___ | False |
| True or False: an arc is shaped like a piece of pie ___ | False |
| True or False: a segment formed by cutting a triangle off of a sector | True |
| True or False: the formulas for arc length and sector area both begin with degrees/360 | True |
| Area of a ___ is base times height | parallelogram |
| A trapezoid has ___ bases | two |
| Which is longer for a given regular polygon, the apothem or the radius? ___ | radius |
| The __ is the height of each of the triangles we make for finding the area of a regular polygon | apothem |
| The base of a parallelogram is ___ side | any |
| The height of a parallelogram is the ___ distance to the base | perpendicular |
| The base of a triangle is any ___ | side |
| In a triangle the height is just the ___ to the base | altitude |
| A rhombus shares the same area formula as the formula for a ____ | kite |
| Apothems are perpendicular to the sides of polygons, so __ triangle tips are useful for solving | right |
| ___ triangle facts like the Pythagorean Thm & triples, 30-60 and 45-45 special triangles are useful | Right |
| To get from the hypotenuse back to the short leg in a 30-60 triangle___ | divide by 2 |
| To get from the short leg to the long leg in a 30-60 triangle ___ | multiply by radical 3 |
| To get from the leg to the hypotenuse in a 45-45 triangle ___ | multiply by radical 2 |
| A triangle with at least two ___ degree angles must be regular | 60 |
| The area of a sector will always be less than ___ | the area of the whole circle |
| The length of an arc will always be ___ than the whole circumference | less |
| The measure of an arc will always be less than ___ | 360 |
| If an equilateral triangle has a side length of 5, how long is its apothem? | 2.5 times radical 3 |
| An equilateral triangle can be broken into two ___ special triangles | 30-60-90 |
| Favorable outcomes divided by total outcomes is ___ | probability |
| If the perimeter ratio of two similar figures is 2 to 3, then the area ratios will be ___ | 4 to 9 |
| Multiplying by your degrees/360 converts your part into the proper ___ of a circle | fraction |
| the product of the diagonals divided by 2 equals the area of a ____ | kite or rhombus |
| The altitude to the base of an isosceles triangle bisects both the vertex angle and the ___ | base |
| altitudes or heights always involve a ___ angle | right |
| true or false: the area formulas for triangles and parallelograms are the same | False |
| Kites and ___ both have right triangles in them since the diagonals are perpendicular | rhombuses (rhombi) |
| To find the area of a regular polygon, you should draw the ____ triangle | apothem |
| A sector is shaped like a piece of pizza, True or false | true |
| To leave an answer in terms of pi, just treat the pi as if it were a ___ and do not covert to a decimal | variable |
| answers left in terms of pi do not use ___ | 3.14 |
| 3,4,5 is the first Pythagorean ___ | triple |
| complete this Pythagorean Triple, ___,12,13 | 5 |
Created by:
criswell216
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