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OverLord2011 [107]

3 years ago

11

Help me please!!!!! Thank you

2 answers:

vovangra [49]3 years ago

6 0

Answer:

<h2>75 in³</h2>

Step-by-step explanation:

The formula of a volume of a pyramid:

$V=\dfrac{1}{3}BH$

B - area of a base

H - height

In a base we have the right triangle with legs 9in and 5in.

The formula of an area of a right triangle:

$A=\dfrac{ab}{2}$

ab - legs

Substitute:

$B=\dfrac{(5)(9)}{2}=\dfrac{45}{2}\ in^2$

The height H = 10 in.

Calculate the volume:

$V=\dfrac{1}{3\!\!\!\!\diagup_1}\left(\dfrac{45\!\!\!\!\!\diagup^{15}}{2\!\!\!\!\diagup_1}\right)(10\!\!\!\!\!\diagup^5)=(1)(15)(5)=75\ in^3$

HACTEHA [7]3 years ago

5 0

Answer:

15/2 in³

Step-by-step explanation:

The formula for the vol. of a pyramid

is

V = (1/3)(area of base)(height of pyramid)

Here, the volume is:

V = (1/3)( [1/2][5 in][9 in] )·(10 in)

= (9/3)(5/2)(10) in³

= 450/6 in³ = 150/2 in³ = 75 in³ Volume of the pyramid

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