subject
Mathematics, 27.02.2020 18:59 rhco4760

Tracy used the expression (25.6) (16.2) + (25.6) (36.5) + (16.2) (37.8) to find the surface area, in square centimeters, of the rectangular pyramid below.

A rectangular pyramid. The rectangular base has a length of 25.6 centimeters and width of 16.2 centimeters. 2 triangular sides have a base of 25.6 centimeters and height of 36.5 centimeters. 2 triangular sides have a base of 16.2 centimeters and height of 37.8 centimeters.

Which statement best describes her work?
Tracy’s answer will be incorrect because she forgot the factor One-half in the expression representing the area of the triangular faces.
Tracy’s answer will be incorrect because the pyramid has five faces and her expression finds the sum of only three products.
Tracy’s answer will be correct because she made use of the fact that 2 (one-half) = 1 in her expression.
Tracy’s answer will be correct because a rectangular pyramid has only three faces and the expression finds the sum of three products.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 19:00
You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?
Answers: 1
question
Mathematics, 21.06.2019 20:00
Which of the following is not a subset of {1,2,3}?
Answers: 2
question
Mathematics, 21.06.2019 21:30
What percent of 18 is 24? and plz explain thx.
Answers: 2
question
Mathematics, 22.06.2019 00:00
Vinny is interviewing for a job.he wants his take home pay to be at least $42,000.what is the least salary he can earn if he pays 25% income tax?
Answers: 2
You know the right answer?
Tracy used the expression (25.6) (16.2) + (25.6) (36.5) + (16.2) (37.8) to find the surface area, in...
Questions
question
Health, 10.12.2019 05:31
question
Mathematics, 10.12.2019 05:31
question
Chemistry, 10.12.2019 05:31
question
Biology, 10.12.2019 05:31
Questions on the website: 13722366