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3 years ago

Urgent!!!!!!!plzz

Mathematics

1 answer:

Nitella [24]3 years ago

7 0

Answer:

too much reading, can you put more points.

(edit: OML SO SORRY -THOUGHT THIS WAS QUESTIONS)

Step-by-step explanation:

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Find the lateral area and surface area of cone

worty [1.4K]

Answer:

$\large\boxed{L.A.=168\pi\ in^2}\\\boxed{S.A.=232\pi\ in^2}$

Step-by-step explanation:

The formula of a lateral area of a cone:

$L.A.=\pi rl$

r - radius

l - slant height

The formula of a surface area of a cone:

$S.A.=\pi r^2+\pi rl$

We have r= 8in and l = 21in. Substitute:

$L.A.=\pi(8)(21)=168\pi\ in^2$

$S.A.=\pi(8^2)+168\pi=232\pi\ in^2$

3 0

3 years ago

Best explained and correct answer gets brainliest.

vlada-n [284]

According to the Side Side Side postulate of congruent triangles, these triangles are congruent because each side is congruent to it’s corresponding side on the other triangle. When writing the congruence statement, you need to make sure that both triangles are read the same way so that one side corresponds to its congruent other side on the other triangle. One way to name these triangles would be HGK ≅ XWV

8 0

3 years ago

What is the nearest whole percent of 45

kvv77 [185]

Answer:

Step-by-step explanation: 45% based on the way you state the question. 45% is a whole percent.

6 0

2 years ago

Read 2 more answers

5/7 = /14 equivalent fraction answer should be?

Alex777 [14]

Answer:

the answer I got is false

Step-by-step explanation:

5/7=14 convert 14 to fraction 98/7

5/7=98/7 compare 5/7 and 98/7

so the maths is false question

3 0

2 years ago

A 120-inch strip of metal 12 inches wide is to be made into a small open trough by bending up two sides on the long side, at rig

mezya [45]

Answer:

x= 3 inch should be turned up on each side

Step-by-step explanation:

Let the height of trough be x.

Width of trough be 12 - 2x.

and length of trough = 120 inch

Volume of trough, V = L×W×H = 120 × (12-2x) × x = 120x(12 - 2x)

For maximum volume, we find V' = 0

i.e 1440 -480x = 0

or x = $\frac{1440}{480}$

or x= 3

Hence x= 3 inch should be turned up on each side

3 0

3 years ago