Need help question 19

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Need help question 19
Spring 2021
See MO19-24 Canvas Assignment for instructions and other relevant information.
19. Mastery Objective 19: Explain the area of a right triangle in multiple ways.
Without using the fact that the area of a triangle is ļbh, but instead only using the area of a rectangle
Ix w, explain why the area of the triangle below is 20 square units in THREE different ways, using
moving and additivity principles.
(a) Method 1:
(b) Method 2:
(c) Method 2:
b) More advanced mehe
9 Aprimitive way to detenmne
the area is to mave small Pieces
and count me total numb-er ofszuart movirg a big chuck of
a rectory tei einer by
by em
The tring
Area of rectoargle= \xW.
w As we Can see the triangle
covers half of rectangIr So area of rigle
will be =5 Ixw. Hore in rectargle I -1ounits
So area of rectargle =1×W= 10X4=4ounit w =4 unit
area of trirg le =} x1xw 1X= 20 unit?
bllets select a box of width I ang ength of l.
tr
80 that we
and 1o boxes in y direcrion. So it will become
a rectargle of 1o unit in y direcrion and 4 unit
in to direction,
will select 4 boxes in' be direchion
Area corered by the triargle=
xaren of
rectorgles
Transcribed Image Text:Spring 2021 See MO19-24 Canvas Assignment for instructions and other relevant information. 19. Mastery Objective 19: Explain the area of a right triangle in multiple ways. Without using the fact that the area of a triangle is ļbh, but instead only using the area of a rectangle Ix w, explain why the area of the triangle below is 20 square units in THREE different ways, using moving and additivity principles. (a) Method 1: (b) Method 2: (c) Method 2: b) More advanced mehe 9 Aprimitive way to detenmne the area is to mave small Pieces and count me total numb-er ofszuart movirg a big chuck of a rectory tei einer by by em The tring Area of rectoargle= \xW. w As we Can see the triangle covers half of rectangIr So area of rigle will be =5 Ixw. Hore in rectargle I -1ounits So area of rectargle =1×W= 10X4=4ounit w =4 unit area of trirg le =} x1xw 1X= 20 unit? bllets select a box of width I ang ength of l. tr 80 that we and 1o boxes in y direcrion. So it will become a rectargle of 1o unit in y direcrion and 4 unit in to direction, will select 4 boxes in' be direchion Area corered by the triargle= xaren of rectorgles
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