Answer:
32°
Step-by-step explanation:
90 - 58 = 32
We know that
[lateral surface area of a regular triangular pyramid]=3*[area of one <span>equilateral triangle]
so
[area of one </span>equilateral triangle]=lateral surface/3-----> 81/3-----> 27 ft²
[<span>surface area of the regular triangular pyramid]=lateral area+area of the base
area of the base is equals to the area of the lateral sides because are </span>equilateral triangles
therefore
area of the base=27 ft²
[surface area of the regular triangular pyramid]=81+27----> 108 ft²
the answer is
<span>the surface area of the regular triangular pyramid is 108 ft</span>²
Answer:
36
Step-by-step explanation:
Median is the Middle number in the sequence.
<em>Hope</em><em> </em><em>this</em><em> </em><em>Helps</em><em>!</em><em>!</em>
<em>:</em><em>D</em>
Because both triangles appear to be isosceles!!!!!!???!!!!
