Asked by URGENT HELP!!!!
Regular triangular pyramid has the slant height k=12 cm and lateral area A = 198 cm2. Find the length of the base edge.
Answers
Answered by
Scott
3 congruent triangles make up the 3 sides
the area of a side is ... 198 / 3 cm^2
the slant height is the height of a triangular side
you have the area and the height of a triangle ... how do you find the base length?
the area of a side is ... 198 / 3 cm^2
the slant height is the height of a triangular side
you have the area and the height of a triangle ... how do you find the base length?
Answered by
URGENT HELP!!!!
Would you multiply by 2
Answered by
Scott
A = 1/2 * b * h
Answered by
me
how to find the area with a slant.
Answered by
Anitha Dumay
12x/2 x 3 =198
Answered by
Anitha Dumay
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Answered by
Nado
Hi peeps!
How you do the problem is you do is you know that because its a regular triangle pyramid all sides are congruent so Al= 1/2 Pb*k.
So you plug in the numbers and the answer you get is 198=1/2*3*Ab*12
and in the end the answer you get is 11cm!
Hope this helped!
How you do the problem is you do is you know that because its a regular triangle pyramid all sides are congruent so Al= 1/2 Pb*k.
So you plug in the numbers and the answer you get is 198=1/2*3*Ab*12
and in the end the answer you get is 11cm!
Hope this helped!
Answered by
Anonymous
Ahh thank you so much Nado!!!!
Answered by
Anonymous #2
Nice
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