Question

After reading a book about ancient Egypt, Cassie decided to build a model of a pyramid out of cardboard. How much cardboard does Cassie need to make the model, including the bottom? 30cm and 25 cm

Answer 1

ANSWER IN DA PHOTO =))))

Answer 2

Hence Cassie need to make the model is 2250$cm^{2}$

What is  square pyramid?

A square pyramid has a square base and four lateral faces in geometry. A pyramid is a polyhedron with a base and three or more triangular faces that meet above it . A square pyramid, also known as a pentahedron, is a three-dimensional geometry with a total of five faces.

How to solve?

As ancient pyramid models were in shape of square pyramid hence we apply

$A = a(a + \sqrt{ (a^{2} + 4h^{2} ))}$

where a =25cm

and h=30 cm

$A = 25(25 + \sqrt{ (25^{2} + 4(30^{2}) ))}$

=25(25+65)

=2250$cm^{2}$

Hence Cassie need to make the model is 2250$cm^{2}$

Learn more about square pyramids https://brainly.com/question/10707107

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