What is the volume of this pyramid?

720 cm³

1080 cm³

1440 cm³

2160 cm³

Volume of given pyramid is 720 cubic centimeter

Solution:

From given figure in question,

A pyramid with a right triangular base

Base length = 9 cm

Height = 15 cm

The height of the pyramid is 32 cm long

The volume of a triangular pyramid is given as:

A = area of the triangle base, and H = height of the pyramid

Find the area of the base:

Now the volume is given as:

Thus volume of given pyramid is 720 cubic centimeter

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

1) the property is   ixi = a ⇔x = a   o x = -a

4(x-5)+3= 15⇒4x-20+3 = 15⇒4x-17= 15⇒4x = 15+17⇒4x = 32⇒x =32/4= 8

4(x-5) +3= -15⇒4x-20 +3 = -15⇒4x-17= -15⇒4x =-15+17⇒4x = 2⇒x =2/4= 1/2

the values are x =8 and x = 0,5