PLEASE HELP WILL MEDAL AND FAN
That net has 3 rectangles and two triangles. You need to find the areas of the lateral faces and add them up. Which faces are the bases and which faces are the lateral faces?
8 cm, 15 cm, and 17 cm are the lateral faces. And the bases are at the sides, the height is 11 cm @mathstudent55
You have 3 rectangles and 2 triangles. Can you tell me which are bases and which are lateral faces? I don't understand your answer because the same rectangles that have lengths 8 cm, 15 cm and 17 cm all have the width 11 cm.
Do you understand the idea of a net for a solid?
Okay the 3 rectangles in the middle are the lateral faces, correct?
Great. Now I understand. you are correct.
The triangles are the bases.
Yes
Just find the areas of the three rectangles and add them up.
Do I find that by multiplying each face by the height? Or add all of the faces together?
You can do two ways: One way: add all the rectangles' lengths together to find the length of the large rectangle formed by the three smaller rectangles. Then multiply bu the width. Other way: find the area of each small rectangle, and add them all up.
8 + 15 + 17 = 40
40 * 11 = 440
|dw:1467057687809:dw|
Correct.
Oh okay so, its 440?
correct
Thanks so much
Notice that this problem is a great geometric demonstration of the distributive property. \(8 \times 11 + 15 \times 11 + 17 \times 11 = (8 + 15 + 17) \times 11\) \(88 + 165 + 187 = 40 \times 11\) \(440 = 440\)
You're welcome.
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