Help Me Please With My Math

Help me please with my math

 

Answer:

A. SA=433.5 yrd^2

B. SA=288 cm^2

C. LSA= 504 cm^2

D. LSA= 2009.6 in^2

Step-by-step explanation:

A. SA for cube is SA= 6a^2

SA= 6(8.5)^2

SA=6 (72.25)

SA=433.5 yrd^2

B. Formula for rectangular prism is = 2ab + 2bc + 2ac

a=6cm, b= 4cm, c=12 cm

SA = 2ab + 2bc + 2ac

SA = 2(6)(4) + 2(4)(12)+ 2(6)(12)

SA= 48+ 96+144

SA=288 cm^2

C. For triangular prism= L.S.A.=ph

Perimeter and height is needed. The sum of the bases are needed.

P=10+12+14

P= 36 cm

...

LSA=36cm(14cm)

LSA= 504 cm^2

D. For the lateral SA for cylinder

LSA= C×h, multiply the circumference by height

To get the circumference c= π2r

C=(3.14)2(10)

C=3.14(20)

C=62.8 in

...

LSA= C×h

LSA= 62.8 in × 32 in

LSA= 2009.6 in^2


Comments

Post a Comment

Popular posts from this blog

Set A Consists Of The Distinct Letters Of The Word "Advancement"

Set A consists of the distinct letters of the word "advancement"   Answer: A = {a, d, v, n, c, e, m, t} Step-by-step explanation: Distinct letters are letters that are only written once; they are not repeated. To write it in Roster form, simply write the name of the set which usually a variable followed by an equal sign (=). Next, write an open and close curly brackets or also known as the braces { }. Inside the braces will be the elements or the answer to whats being asked. As for this set, it is asking for the distinct letters of the word "advancement". To get the distinct letters of "advancement", simply cancel out letters that are written twice/thrice or more so that only one of each letter is left . #JuneChallenge
Read more

What Are Properties Of Material

What are properties of material   Materials have various properties but there are divided into two major categories: physical and chemical . These properties are important because it enables us to know whether a material is safe or potentially harmful to us. Physical properties of matter are those that can be observed or sensed using the five senses that we have. These include the following: hardness - toughness of a materials brittleness - ability of a material to break into shards or pieces when exposed to stress or force malleability - the ability of a material to be flattened to sheets when exposed to force conductivity - ability of material to conduct electricity elasticity - ablity of a material to go back to its original shape ductility - ability of a material to be made into fine wires odor - ability to be smelled volume -  space occupied The chemical properties of materials are properties that can only be observed when an object undergoes a chemical reaction. These includ...
Read more