9. A triangle has an area of 36 yd2 and a base of 3 yd, what is the height of the triangle?

Step-by-step explanation:

The formula for a triangle's area is:

We know the area is 36 square yards and the base is 3 yards.

Substitute the values into the formula.

Divide by 1/2 or multiply both sides by 2.

We are trying to solve for the height, so we must isolate that variable. h is being multiplied by 3. The inverse of multiplication is division, so we must divide both sides by 3 yd.

The height of the triangle is 24 yards.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm