What is the area of a triangle that has a height of 10 feet and a base length of 8 feet?
10 feet2
20 feet2
40 feet2
80 feet2
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OpenStudy (michele_laino):
here we have to apply the subsequent formula:
\[area = \frac{{base \times height}}{2} = \frac{{10 \times 8}}{2} = ...?\]
OpenStudy (anonymous):
alright let me write that down (:
OpenStudy (anonymous):
Ok so I got 40
OpenStudy (michele_laino):
correct!
OpenStudy (anonymous):
so C?
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OpenStudy (michele_laino):
yes!
OpenStudy (anonymous):
Alright, I have one more
OpenStudy (michele_laino):
ok!
OpenStudy (anonymous):
Zeda described four triangles as shown below:
Triangle P: Two angles measure 50°.
Triangle Q: All sides have length 13 cm.
Triangle R: Two sides have length 3 cm, and the included angle measures 60°.
Triangle S: Base has length 5 cm, and base angles measure 30°.
Which triangle is not a unique triangle?
Triangle P
Triangle Q
Triangle R
Triangle S
OpenStudy (michele_laino):
please look at this drawing:
|dw:1445462533231:dw|
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OpenStudy (michele_laino):
Is my drawing possible?
OpenStudy (anonymous):
I think so.. yes
OpenStudy (michele_laino):
yes! In fact i can draw infinity triangles which have two angles of 50 degrees. So, what is the right option?
OpenStudy (anonymous):
Triangle P?
OpenStudy (michele_laino):
I meant an infinite number of such triangles.
Correct!
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OpenStudy (anonymous):
Okay Thank you so Much!
OpenStudy (michele_laino):
:)
OpenStudy (anonymous):
Do you think you can help with one more, I didnt see this question.. I promise last one lol @Michele_Laino