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hammer [34]
3 years ago
14

Aggh please help with this

Mathematics
1 answer:
docker41 [41]3 years ago
6 0
Sure ill help you what you need help with
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Can someone please help me
Bad White [126]

Answer:

<h2>L.A. = 384 cm²</h2><h2>S.A. = 640 cm²</h2>

Step-by-step explanation:

Lateral Area:

We have four congruent triangles with base b = 16cm and height h = 12cm.

The formula of an area of a traingle:

A_\triangle=\dfrac{bh}{2}

Substitute:

A_\triangle=\dfrac{(16)(12)}{2}=(8)(12)=96\ cm^2

L.A.=4A_\triangle=4(96)=384\ cm^2

Surface Area:

S.A.=B+L.A.

In the base we have the square with side s = 16cm. The formula of an area of a square:

A_\square=s^2

Substitute:

B=16^2=256\ cm^2

S.A.=256\ cm^2+384\ cm^2=640\ cm^2

4 0
3 years ago
What is the surface area of the rectangular pyramid
posledela

Answer:

<h2>41.74 m²</h2>

Step-by-step explanation:

We have:

rectangle 4.8 m × 3.8 m

two triangles with base b = 4.8 m and height h = 2.6 m

two triangle with base b = 3.8 m and height h = 2.9 m.

The formula of an area of a rectangle l × w:

A = lw

Substitute:

A_1 = (4.8)(3.8) = 18.24\ m^2

The formula of an area of a triangle:

A=\dfrac{bh}{2}

Substitute:

A_2=\dfrac{(4.8)(2.6)}{2}=6.24\ m^2\\\\A_3=\dfrac{(3.8)(2.9)}{2}=5.51\ m^2

The Surface Area:

S.A.=A_1+2A_2+2A_3\\\\S.A.=18.24+2(6.24)+2(5.51)=41.74\ m^2

3 0
3 years ago
Pedro fills a glass 2/4 full with orange juice write a fraction with a denominator of 6 that is greater than2/4
soldier1979 [14.2K]
One would be 4 over 6 or 5 over 6 hope I helped good luck

5 0
3 years ago
Read 2 more answers
IIf segment FD = 20 units and segment DE = 52 units, what is the value of b? Round the solution to the nearest hundredth. triang
grin007 [14]

Answer:I think 10

Step-by-step explanation: fd=20/52 is 30 f

5 0
3 years ago
Read 2 more answers
Which property is shown? 2(x+3)=2x+6​
WITCHER [35]

Answer:

Distributive property.

Step-by-step explanation:

The 2 is being distributed to both the x and the 3.

3 0
3 years ago
Read 2 more answers
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