Questions on Geometry: Area and Surface Area answered by real tutors!

Tutors Answer Your Questions about Surface-area (FREE)

Question 265715: Explain the steps of a surface area problem an the diff formulas to do each shape i would very apreciate it thanks.
Click here to see answer by drk(1908)

Question 266109: hello, can you guys please help me? my question is a about a big pyramid made out of cubes starting with 1 cube at the top, then 8, then 21, and so on. Our question is how many sides will be painted. How many will have 0 sides painted, 1 side, 2 sides, 3 sides, 4 sides, 5 sides, and 6 sides, and all sides. I already know that there's gonna be a certain amount that some sides are not gonna be painted because some sides are going to be covered, like the bottom. We're trying to find out how many sides will be painted in a 10 story building. I also noticed that as it goes down by each floor the number of cubes are a perfect square but the number increases by two. like for the third floor there were 25 cubes, which is 5*5. then the fourth floor was 49 cubes in total. 7*7, so as you can see from 5 it increased by 2. So im trying to find a formula to find the number of shaded ones for each number of painted sides. And a formula for the whole thing. I would greatly appreciate your help, because as you can see I'm confused, and this project is hard!
-Laura! thank you!
Click here to see answer by drk(1908)

Question 266119: If a triangle has an area of 200 square feet and the height is 7.5 feet, how do you figure out the base?

Click here to see answer by user_dude2008(1861)

Question 266118: Show that (-1,-1), (9,4), (20,6), and (10,1) are the vertices of a rhombus, and then find the area of the rhombus.
Click here to see answer by jim_thompson5910(28598)

Question 266118: Show that (-1,-1), (9,4), (20,6), and (10,1) are the vertices of a rhombus, and then find the area of the rhombus.
Click here to see answer by drk(1908)

Question 266053: How many cubic feet are contained within the refrigerator?
Length 36 inches.
Width 33 inches.
Height 66 inches.
Click here to see answer by rfer(12670)

Question 266249: If the side of a square is decreased by 3 meters, the area is decreased by 45 square meters. Find the length of the original square.
Click here to see answer by vksarvepalli(154)

Question 266482: HOW TO DO SURFACE AREA ON A RECTANGULAR PRISM WHEN OVERLAPPED ? our teacher doesnt explain the formula of the rectangular prism... and doesnt know how to explain ANYTHING! i have a UNIT TEST on TUESDAY.. and i seem to understand absoloute nothing. I would prefer to ask my teacher for help... but he never demonstrates or teachees anything right.. I REALLY WANT A TUTOUR OF MY OWN OR ELSE I WILL FAIL GRADE 9 MATH.. WHEN IM A STRAIGHT A STUDENT..
Click here to see answer by JBarnum(2044)

Question 266652: Suppose the volume must be 50in^3, What are the values for r and h that will minimize the amount of sheet metal required to obtain this volume. I know volume is v= (pi)r^2h. I also know the surface area is sa= 2(pi)rh+2(pi)r^2.
I have been working on this all day. Any help would be greatly appreciated. Thanks
Click here to see answer by drk(1908)

Question 266666: 1.What is the surface area that has a diameter of 3 inches and height of 5 inches?
2.What is the total square feet of a rectangle that is 12 ft x 8ft x11ft?
3.A rectangular swimming pool has a length of 18 ft, width of 10 ft, and a depth of 4ft. What is the volume of water the pool can hold?
Click here to see answer by drk(1908)

Question 266921: What is the exact area of a circle with a diameter of 17 inches?
Click here to see answer by unlockmath(1603)

Question 267029: hello.. please help me solve this problem. I urgently need it tomorrow. please??
I really can't answer it because it is really hard. please help me.
1) Find the area of the base of a regular square pyramid whose lateral faces are equilateral triangle and whose altitude is 30 cm. Find the volume also.
thanks!
It would be a great help.
God Bless!
Click here to see answer by richwmiller(9143)

Question 267140: A rectangle has a length of 10 centimeters and an area of 40 square centimeters. what is the width of the rectangle?
Click here to see answer by richwmiller(9143)

Question 267551: A square has all its edge lenghts increased by 3cm.
This makes a new square with twice the area of the old one.
What was the area of the old square.
i was wondering if you could show me how this is worked out
it is to help my daughter for school thanks Valerie
Click here to see answer by Alan3354(30993)

Question 267720: What is the are in square yards of a circle that has a diameter of 6 yards
Click here to see answer by solver91311(16897)

Question 267759: If the surface area of a cube is 864 square inches, what is the length of the lateral edge of the cube?
Click here to see answer by palanisamy(496)

Question 268023: how to determine the area of a rectangle which has a side that measures 20 ft?
Click here to see answer by Alan3354(30993)

Question 268206: Hi, I am a mom who is trying to help my 11 year old with a math problem. The question is
1. Find the total surface area of a cube whose edge is 2 meters long.
I believe that the answer would be (2x2)6 = 24
He thinks it is (2x1)8 = 16 m
He thinks that a cube has 8 edges so it would be x 8. I think it would be times 6 but can not remember why. Algebra was a long long time ago.
Please help.
Click here to see answer by Alan3354(30993)

Question 268518: what is the length of one side of cube when surface area is 384

Click here to see answer by stanbon(57387)

Question 268320: what is the area if s = 60 cm
Click here to see answer by Alan3354(30993)

Question 268829: the norman window with the dimensions of a rectangle with a base of 6 feet is topped by a semicircle. if the area of the window is 68.2 square feet, find the height h to the nearest tenth of a foot.
Click here to see answer by mananth(12270)

Question 268903: Abby made a heart for Valentine's Day by taking two tangent circles of radius 6 and then making two line segments tangent to the circles that meet and form a 60 degree angle at the bottom. what is the area of the heart? find the exact answer, not a decimal approximation.
Click here to see answer by Alan3354(30993)

Question 269281: The formulas for surface area result in answers with __________ units while the formulas for volume result in answers with _________ units.

Click here to see answer by stanbon(57387)

Question 269680: whats the area of a rhombus with one diameter of 7 an a 45 degree angle?
Click here to see answer by jojo14344(1512)

Question 269860: how do you solve the surface area of a cone
Click here to see answer by drk(1908)

Question 269859: what are the formulas for finding the surface area of prisms,pyramids,cones,cylinders, and cubes
Click here to see answer by Alan3354(30993)

Question 269900: what is the easiest method to find the surface area of a cone step by step and also the surface area for prisms
Click here to see answer by drk(1908)

Question 269863: what are the formulas to finding the surface area of cubes,prisms,cylinders,pyramids,spheres and shortcuts if there are any?
Click here to see answer by Tobiasz(54)

Question 270100: The platform the man stood on was square shaped. What is the perimeter of the platform if one side measures 60 inches?
Click here to see answer by Tobiasz(54)

Question 270100: The platform the man stood on was square shaped. What is the perimeter of the platform if one side measures 60 inches?
Click here to see answer by palanisamy(496)

Question 270306: what is area of a triangle with a base of 7 meters and a height of 4 meters.
Click here to see answer by jim_thompson5910(28598)

Question 270378: a cylinder-shaped water storage tank with diameter 60 feet and height 20 feet need to be painted on the out side. If the tank is on the ground the surface area that is needs painting.
Click here to see answer by checkley77(12569)

Question 270439: a cube has a surface area of 364 cm squared.what is the edge lenth of the cube?
Click here to see answer by stanbon(57387)

Question 270474: Given the circumference of an irregular shaped area, example a lawn, how do I calculate the sq ft ?. The circumferance is 320 ft
Click here to see answer by Greenfinch(383)

Question 270453: a square picture frame measures 36 in. on each side. the actual wood trim is 2 in, wide. the photo frame is surrounded by a bronze mat that measures 5in. what is the maximum area of the photo??
Click here to see answer by ankor@dixie-net.com(15660)

Question 270645: how do you divide a number by the fraction 4/3 (4 over 3)?
Click here to see answer by mananth(12270)

Question 270654: On a softball diamond the bases are 60 feet apart and meet to form right angles. A base runner is standing on first when the batter hits a long fly ball down the right field line. The base runner takes off for second, rounds second, sprints for third, and slides headfirst into third. What a slide! However, it was a foul ball. So the runner gets up, and jogs straight across the infield back to first. How far did the runner run on this play?
Click here to see answer by Greenfinch(383)

Question 270636: How much tarp would be needed on a pool that is 20 feet long on each side? The tarp has to be 1 foot longer on each side.
Click here to see answer by Theo(3464)

Question 270828: What is the radius of a sphere when its surface area is 113 square inches
Click here to see answer by Greenfinch(383)

Question 270924: what is the face value of a cube with 5in, 5in, 5in, 5in?

Click here to see answer by JBarnum(2044)

Question 270962: 1. the area of a square is 225inches. what is the perimeter of the square?
2. the area of a rectangle is 130 foot. if the width of the rectangle is 10 feet then what is the perimeter of the rectangle?
Click here to see answer by JBarnum(2044)

Question 271033: What is the area , in square inches of a circle whose circumference is 4pi inches what is the surface area and the volume of the box
Click here to see answer by rfer(12670)

Question 271241: the radius ofthe base of a cylinder is 28cm and its height is 48cm. Find the surface area of the cylinder in terms of pie
Click here to see answer by CharlesG2(828)

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