Math, asked by bhopalsingh3025, 4 months ago

The area of a right triangle, whose base is 12 cm, is 169cm . Find the cost of levelling the field at 90 paise per m. [ MENSURATION]​

Answers

Answered by raushansingh316
0

Step-by-step explanation:

area of triangle =1/2*base *height

169 = 1/2*12 *height

so, height =28.16.

cost of leveling the field =28.16*90 =2534.40

so it's helpful for us

thanks

Answered by Anonymous
5

Given:

✰ Base of a right triangle = 12 cm

✰ Area of a right triangle = 169 cm²

To find:

✠ Find the cost of levelling the field at 90 paise per m.

Solution:

Let's understand the concept! First we will convert area of a right triangle into metre square, then we will find the cost.

Let's find out...♪

⟹ 1 cm = 1/100 m

⟹ 169 cm = 169/100 m

⟹ 1.69 m

➛ The cost of levelling the field per metre = 90 paise

➛ The cost of levelling the field per 1.69 m = 90 × 1.69

➛ The cost of levelling the field per 1.69 m = 152.1 paise

The total cost of levelling the field = 152.1 paise

What if we need to find height also?

We will find height by using the formula of area of triangle. As we are already provided with the area. Thus, forming an adequate equation and doing required calculations, we can easily find out the height of a triangle.

Area of triangle = 1/2 × base × height

➤ 169 = 1/2 × 12 × h

➤ 169 = 6 × h

➤ h = 169/6

➤ h = 28.16

∴ The height of a right triangle ≈ 28.2 cm

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