toab53
Answered

Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

A square pyramid has a base area of 25 ft2. The pyramid’s total surface area is 105 ft2.

What is the area of each triangular face?

Sagot :

luana
[tex]Area\ of\ pyramide=area\ of\ square+4\cdot\ area\ of\ triangulars\\\\A_p=a^2+4\cdot\frac{ah}{2}\\\\a^2=25\\a=5\\\\105=25+4\cdot\frac{5h}{2}\\105-25=2\cdot5h\\80=10h\ \ \ \ |:10\\h=8\\\\A_t=\frac{5\cdot8}{2}=\frac{40}{2}=20\ ft^2\\\\Each\ triangular\ has\ 20\ ft^2[/tex]
Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Your questions are important to us at Westonci.ca. Visit again for expert answers and reliable information.