Question

Please, a little more help on 2 questions. I am so confused. (attached below)

Answer 1

Thx for any help given!

Answer 2

@GretaKnows

Answer 3

Pleaz????

Answer 4

For the first question, to find the surface area, you'll want to add the individual areas of each face of the shape. You have one square (the base) and four triangles - find the areas of each and add them all together to find the total surface area!

For the second question, it's a similar idea. You just need to find the areas of each individual section and add them together to get the total area! HINT: instead of treating the 2 semicircles separately, it may be easier to treat them as one complete circle.

Let me know what you get for each question!

Answer 5

So for 2 (which i did first) I got 178.26 which I can estimate 178 (or C) but I tried the first one and got 28. I dont get it... @matt101

Answer 6

I agree with your answer for 2 - well done!

For #1, let's do it step by step. The area of the square base is just 4 cm x 4 cm, or 16 cm^2. The area of ONE triangle is 4 cm x 6 cm / 2, which is 12 cm^2. The height of the triangle is 6 cm, and the base of the triangle is 4 cm, because the base of the triangle is just one side of the square at the bottom! You have 4 triangles though, so there's 12 x 4 = 48 cm^2 of surface area coming from the triangles. Add this to the 16 cm^2 from the square, and you end up with a total surface area of 64 cm^2. That makes the final option your answer!

Do you understand what I did to get the answer here?

Answer 7

Ohhhhh I get it. Thank you so much. I really didnt get it till now :)

Answer 8

No problem - glad I could help!