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3 years ago

The faces of a triangular pyramid have a base of 5 cm and a height of 11 cm. what is the lateral area of the pyramid?

Mathematics

1 answer:

Jlenok [28]3 years ago

3 0

The formula for the lateral area of triangle pyramid would be 5 x 11 x 3/2 which is 165/2.

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Makenzie leaves her home at 10am. She has to be at her grandmother's house, which is 42 miles away. The

mestny [16]

Answer:

Step-by-step explanation:

will take approximately 1-2 hours or even longer

7 0

3 years ago

Brainliest and Five Stars for correct answers

wel

$\bf \lim\limits_{x\to 9}~\cfrac{x^2-81}{x-9}\implies \cfrac{\stackrel{\textit{difference of squares}}{x^2-9^2}}{x-9}\implies \cfrac{\underline{(x-9)}(x+9)}{\underline{(x-9)}}
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\lim\limits_{x\to 9}~x+9\implies (9)+9\implies 18$

3 0

3 years ago

Which one doesn't belong?<br> 1. 5+7=7 +5<br> 2. 5.7=7.5<br> 3. 2= 7 - 5<br> 4. 5-7= 7-5

kap26 [50]

The one that doesnt belong is the 3 one

4 0

3 years ago

Read 2 more answers

How to solve 42=3(2-3h)

faust18 [17]

Answer:

h= -4.

Step-by-step explanation:

42= 6-9h

42-6=-9h

36=-9h

36/-9= -9h

-4=h

5 0

3 years ago

The area of a rectangle gets reduced by 9 sq. units,if its length is reduced by 5 units and Breadth is increased by 3 units.If w

Scilla [17]

Let the length and breadth of the rectangle be x and y.

Area of rectangle is A = xy

Therefore, the new length will be = x-5

Therefore, the new breadth will be = y + 3

So new area will be xy-9

Now the new relation will be (x+3)(y+2)=xy+67

Cross – multiplication method–

$\dfrac{x}{{{b_1}{c_2} - {b_2}{c_1}}} =\dfrac{y}{{{a_2}{c_1} - {c_2}{a_1}}} = \dfrac{1}{{{a_1}{b_2} - {a_2}{b_1}}} || x = \dfrac{{{b_1}{c_2} - {b_2}{c_1}}}{{{a_1} {b_2} - {a_2}{b_1}}} y = \dfrac{{{a_2}{c_1} - (c_2}{a_1}}}{{{a_1}{b_2}-{a_2}{b_1}}}\\$

$\Rightarrow \dfrac{x}{{305 - ( - 18)}} =\dfrac{y}{{ - 12 - ( - 183)}} = \dfrac{1}{{9 - 10)}}\\\$

$\Rightarrow \dfrac{x}{{323}} = \dfrac{y}{{171}} = \dfrac{1}{{19}} \\\Rightarrow x = 17, y = 9 \\$

Therefore, the length is 17 and breadth is 9.

5 0

3 years ago