Question
We know from historical records that the Great Pyramid of Giza was originally about 147 m tall. Assuming it was built with its faces at 52 degree inclines, what was the original length of one side of its base? Round your answer to the nearest meter.
91 m
115 m
181 m
230 m
I'm stumped:/ Please help.
91 m
115 m
181 m
230 m
I'm stumped:/ Please help.
Answers
Make a side-view of the pyramid, and drop a perpendicular.
let the side of the base be 2x, (that way I don't have fractions in my variable)
in the right-angled triangle
tan 52° = 147/x
x = 147/tan52
= ...
then base side
= 2x
= ....
let the side of the base be 2x, (that way I don't have fractions in my variable)
in the right-angled triangle
tan 52° = 147/x
x = 147/tan52
= ...
then base side
= 2x
= ....
Yeah, but what is it? I did exactly that, not one of the answers
Trigonometry Practice Answers
1. C
2. D
3. B
4. A
5. C
6. A
7. B
8. D
9. B
10. A
1. C
2. D
3. B
4. A
5. C
6. A
7. B
8. D
9. B
10. A
its 147/tan(52)= 114.82
114.82*2=229.69 round up
230 m
114.82*2=229.69 round up
230 m
Anonymous is 100% right.
trigonometry practice for honors
1.c
2.B
3. a
4. c
5. a
6. a, c, and d
7. a, c, and d
8. d
9. b
10. a
just took it
1.c
2.B
3. a
4. c
5. a
6. a, c, and d
7. a, c, and d
8. d
9. b
10. a
just took it
anonymous is incorrect at least for connexions academy and if you are giving answers please give them correctly some really need it(including me) thanks:)
1.part A is C ad part B is A
2.part A is B and part B is A
3.C
4.A
5.B
6.D
7.B
8.A
you're welcome :)
2.part A is B and part B is A
3.C
4.A
5.B
6.D
7.B
8.A
you're welcome :)
red robins correct I have been waiting for the correct answers forever
okay so just know that on part 1b, the answer is not a (91) and 2 part b is not c ( the answer is probably a)
anon1 is correct
robin aswell same answers just simplified
Trigonometry Quiz Part 1
a
c
B
c
D
B
Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. The diagram is not drawn to scale.
X=9.9
y=7
a
c
B
c
D
B
Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. The diagram is not drawn to scale.
X=9.9
y=7
@anonymous is 100% correct I jus took the quiz rn n got 100% if u are taking the trigonometry practice quiz and on unit 3 lesson 3. He is 100% correct. @ Red Robin IS NOT CORRECT NOR IS OLD TOWN ROAD
1A; c
1B: d
2A; b
2B; a
3; c
4; a
5; b
6; d
7; b
8; a
just took the practice
1B: d
2A; b
2B; a
3; c
4; a
5; b
6; d
7; b
8; a
just took the practice
Trigonometry Quiz Part 1
b
c
B
c
D
B
Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. The diagram is not drawn to scale.
X=9.9
y=7
b
c
B
c
D
B
Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. The diagram is not drawn to scale.
X=9.9
y=7