All categories

2 years ago

A triangle has a base of 8 cm and a height of 12 cm. What is the area of the triangle?

Mathematics

2 answers:

shtirl [24]2 years ago

7 0

Answer:

48cm squared

Step-by-step explanation:

8x12=96x0.5= 48

White raven [17]2 years ago

6 0

Answer:

48 cm ²

Step-by-step explanation:

area of a triangle is the base times the height and then then answer is divided by 2

bh/2

8 times 12 = 96/2 = 48 cm ²

You might be interested in

Write 5.306 in word form.

elena-14-01-66 [18.8K]

Five and three hundred and six thousandths.

3 0

3 years ago

Read 2 more answers

Given points A(-1, -2) and B(2, 4) where AP: BP=1:2, find the locus of point P.

koban [17]

Answer:

$x^2 + 4x + y^2 +8y = 0$

Step-by-step explanation:

Given

$A = (-1,-2)$

$B = (2,4)$

$AP:BP = 1 : 2$

Required

The locus of P

$AP:BP = 1 : 2$

Express as fraction

$\frac{AP}{BP} = \frac{1}{2}$

Cross multiply

$2AP = BP$

Calculate AP and BP using the following distance formula:

$d = \sqrt{(x - x_1)^2 + (y - y_1)^2}$

So, we have:

$2 * \sqrt{(x - -1)^2 + (y - -2)^2} = \sqrt{(x - 2)^2 + (y - 4)^2}$

$2 * \sqrt{(x +1)^2 + (y +2)^2} = \sqrt{(x - 2)^2 + (y - 4)^2}$

Take square of both sides

$4 * [(x +1)^2 + (y +2)^2] = (x - 2)^2 + (y - 4)^2$

Evaluate all squares

$4 * [x^2 + 2x + 1 + y^2 +4y + 4] = x^2 - 4x + 4 + y^2 - 8y + 16$

Collect and evaluate like terms

$4 * [x^2 + 2x + y^2 +4y + 5] = x^2 - 4x + y^2 - 8y + 20$

Open brackets

$4x^2 + 8x + 4y^2 +16y + 20 = x^2 - 4x + y^2 - 8y + 20$

Collect like terms

$4x^2 - x^2 + 8x + 4x + 4y^2 -y^2 +16y + 8y + 20 - 20 = 0$

$3x^2 + 12x + 3y^2 +24y = 0$

Divide through by 3

$x^2 + 4x + y^2 +8y = 0$

3 0

2 years ago

Could somebody check my work and tell me if it's right? If its wrong, please tell me where I went wrong.

vodka [1.7K]

Answer:

it would help if we could see it

4 0

3 years ago

Plz help

Lina20 [59]

This question makes no sense

7 0

2 years ago

Becky and claire went trick or treating.At the end of the night ,they combined their candy and found they each had four large ca

Natalija [7]

Answer:

Well, You possibly did all the math depending on the question. But if it was subtraction that means there's one candy bar left

step-by-step explanation:

I hope this helped in any way!

8 0

2 years ago

A triangle has a base of 8 cm and a height of 12 cm. What is the area of the triangle?​

A triangle has a base of 8 cm and a height of 12 cm. What is the area of the triangle?