What is the volume of this pyramid? 945 cm³ 1260 cm³ 1890 cm³ 2520 cm³ A pyramid with a right triangular base. The right triangu

Question

1 year ago

4

lar base has a base length of fourteen centimeters and a height of eighteen centimeters. The height of the pyramid is thirty centimeters long.

1 answer:

Mrac [35] · Answer 1 · 2020-10-08T12:06:04+03:00

Answer:

Option 2. Volume = 1260 cm³

Step-by-step explanation:

As we know the formula of volume of a right angle triangle

$V=\frac{1}{3}\times (A){h}$

Here V is the volume of pyramid

A = area of the triangular base

h = height of the triangle

Now we put the values in the formula

$A=\frac{1}{2}h'\times b$

$A=\frac{1}{2}\times 14\times 18=7\times 18=126cm^{2}$

$V=\frac{1}{3}\times 30\times 126$

Therefore Volume of the pyramid = 1260 cm³